List of extraterrestrials in fiction
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226020910
2008-07-16T13:56:29Z
Gwernol
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Reverted edits by [[Special:Contributions/Regemet|Regemet]] ([[User talk:Regemet|talk]]) to last version by Moverington
{{mergeto|List of extraterrestrials in fiction by type|date=July 2007}}
This is a list of [[Extraterrestrial life in popular culture|extraterrestrial]] species that have appeared in various works of [[Extraterrestrials in culture|fiction featuring aliens]].
==List of named species==
{| class="wikitable sortable"
! Name !! Source !! Type
|-
| [[Aaamazzarite]] || ''[[Star Trek]]'' ||
|-
| [[Aalaag]] || [[Gordon R. Dickson]]'s ''Way of the Pilgrim'' ||
|-
| [[Abh]] || ''[[Crest of the Stars]]'' ||
|-
| [[Abydonians]] || ''[[Stargate SG-1]]'' ||
|-
| [[Abyormenite]]s || [[Hal Clement]]'s ''Cycle of Fire'' || floating balloons
|-
| [[Acamarian]] || ''[[Star Trek]]'' ||
|-
| [[Acquarans]] || ''[[Farscape]]'' || Humanoid
|-
| [[List of Doctor Who monsters and aliens#Adipose|Adipose]] || ''[[Doctor Who]]'' || Humanoid
|-
| [[Advents]] (aka Uranus or the Creators) || ''[[Guyver]]'' ||
|-
| [[Aenar]] || ''[[Star Trek]]'' ||
|-
| [[Aeodronian]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Affront]] || [[Iain M. Banks]]' ''[[Excession]]'' ||
|-
| [[Akaali]] || ''[[Star Trek]]'' ||
|-
| [[Akritirians]] || ''[[Star Trek]]'' ||
|-
| [[The Alien]] || [[Satyajit Ray]]'s ''[[The Alien]]'' and ''[[The Alien|Banku Babu's Friend]]'' ||
|-
| Alkari || ''[[Master of Orion]]'' ||
|-
| [[Allasomorph]] || ''[[Star Trek]]'' ||
|-
| [[Alliance-Union universe|Amaut]] || [[C. J. Cherryh]]'s [[Alliance-Union universe]] ||
|-
| Altarians || ''[[Galactic Civilizations]]'' ||
|-
| [[Amnioni]] || [[Stephen R. Donaldson|Stephen Donaldson]]'s ''[[The Gap Cycle]]'' || Humanoid
|-
| Amorphs || [[Schlock Mercenary]] ||
|-
| [[Anabis]] || ''[[The Voyage of the Space Beagle]]'' by [[A. E. van Vogt]] ||
|-
| Ancients || ''[[Farscape]]'' ||
|-
| [[Ancient (Stargate)|Ancient]]s || ''[[Stargate SG-1]]'' ||
|-
| [[Andalite]]s || [[K. A. Applegate]]'s ''[[Animorphs (book series)|Animorphs]]'' ||
|-
| [[Andorian]]s || ''[[Star Trek]]'' || Humanoid
|-
| [[Andromeni]] || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Androsynth]] || ''[[Star Control]]'' ||
|-
| Angol Mois || ''[[Sgt. Frog]]'' ||
|-
| [[Angosian]]s || ''[[Star Trek]]'' ||
|-
| [[Annihilus]] || [[Marvel Comics]] || native of the [[Negative Zone]]
|-
| [[Antaran]]s || ''[[Master of Orion II]]'' ||
|-
| Antarians || ''[[Imperium Galactica II: Alliances]]'' ||
|-
| [[Antedean]]s || ''[[Star Trek]]'' ||
|-
| [[Antican]]s || ''[[Star Trek]]'' ||
|-
| The [[Anti-Monitor]] || [[DC Comics]] ||
|-
| [[Aqualish]] || ''[[Star Wars]]'' ||
|-
| [[Aquatoid]]s || ''[[X-COM: Terror from the Deep]]'' ||
|-
| [[Arachnid]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Aras]] || ''[[Perry Rhodan]]'' ||
|-
| Arbryls || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Omnitrix#Cannonbolt|Arburian Pelarota]] || ''[[Ben 10]]'' ||
|-
| [[Arcadian]]s || ''[[Star Trek]]'' ||
|-
| Arceans || ''[[Galactic Civilizations]]'' ||
|-
| [[Arcturian]]s || ''[[Star Trek]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Argolin|Argolin]] || ''[[Doctor Who]]'' || Humanoid
|-
| [[Arilou]] || ''[[Star Control]]'' ||
|-
| Arisians and Eddorians || [[E. E. Smith]]'s [[Lensman]] novels ||
|-
| [[Ark Megaforms]] || [[Noon Universe]] ||
|-
| [[Arkonides]] || ''[[Perry Rhodan]]'' ||
|-
| Arnor || ''[[Galactic Civilizations II: Dread Lords]]'' ||
|-
| [[Asari (Mass Effect)|Asari]] || [[Mass Effect]] ||
|-
| [[Aschen (Stargate)|Aschen]] || ''[[Stargate SG-1]]'' ||
|-
| [[Asgard (Stargate)|Asgard]] || ''[[Stargate SG-1]]'' || Humanoid
|-
| [[Aslan (Traveller)|Aslan]] || [[Traveller (rpg)|Traveller]] RPG || Feline humanoid
|-
| [[Asuran]]s || ''[[Stargate Atlantis]]'' ||
|-
| [[Atavus]] || ''[[Earth: Final Conflict]]'' || Humanoid
|-
| [[Foreigner universe|Atevi]] || [[C. J. Cherryh]]'s ''Foreigner'' series || Humanoid
|-
| [[Aurelians]] || ''[[Advent Rising]]'' ||
|-
| [[Autobot]] || [[:Category:Transformers|Transformers]] ||
|-
| [[Auronar]] || ''[[Blake's 7]]'' ||
|-
| [[Auton]]s || ''[[Doctor Who]]'' ||
|-
| [[Axanar]]s || ''[[Star Trek]]'' ||
|-
| [[Axon]]s || ''[[Doctor Who]]'' ||
|-
| [[Azgonians]] || ''[[Perry Rhodan]]'' ||
|-
| [[Aziam]] || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Baalols]] || ''[[Perry Rhodan]]'' ||
|-
| [[Babel fish]] || ''[[The Hitchhiker's Guide to the Galaxy]]'' ||
|-
| [[Badoon]] || [[Marvel Comics]] ||
|-
| [[Bailies]] || ''[[Cleopatra 2525]]'' || machine race that conquered Earth
|-
| [[Bajoran]]s || ''[[Star Trek]]'' || Humanoid
|-
| [[Ba'ku]]s || ''[[Star Trek]]'' ||
|-
| Baliflids || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| Ballchinnian || ''[[Men in Black II]]'' ||
|-
| [[Balmarian]]s || ''[[Super Robot Wars]]'' ||
|-
| [[Bandersnatchi (Known Space)|Bandersnatchi]] || [[Larry Niven]]'s [[Known Space]] || [[Thrint|Slaver]]'s meat animal
|-
| [[List of Star Trek races#Bandi|Bandi]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Banik]] || ''[[Farscape]]'' || Humanoid
|-
| [[Bantha]]s || ''[[Star Wars]]'' ||
|-
| [[Barkonides]] || ''[[Perry Rhodan]]'' ||
|-
| [[Barzan]]s || ''[[Star Trek]]'' ||
|-
| [[Beings of the Extra Terrestrial origin which is Adversary of human race]] || ''[[Muv-Luv]]'' ||
|-
| [[Benjari]] || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Benzite]]s || ''[[Star Trek]]'' ||
|-
| [[Berellian]]s || ''[[Star Trek]]'' ||
|-
| [[Berserker (Saberhagen)|Berserkers]] || [[Fred Saberhagen]]'s Berserker series ||
|-
| [[Berubelan]]s || ''[[Anachronox]]'' ||
|-
| [[Betazoid]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Bgztl]]ans || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| [[Bionicle]]s || [[Bionicle]] ||
|-
| [[Bioroids]] || [[Intense Stories]] ||
|-
| [[Bith]] || ''[[Star Wars]]'' ||
|-
| Bjorn || ''[[Space Quest]]'' ||
|-
| [[Black Arms]] || ''[[Shadow the Hedgehog (video game)|Shadow the Hedgehog]]'' || Humanoid
|-
| [[The Black Cloud|Black Cloud]] || [[Fred Hoyle]] || interstellar dust cloud
|-
| [[Black Oil]] || ''[[The X-Files]]'' ||
|-
| [[Blastaar]] || [[Marvel Comics]] || native of the [[Negative Zone]]
|-
| Blisk || ''[[Destroy All Humans! 2]]'' ||
|-
| [[Bolian]]s || ''[[Star Trek]]'' || Humanoid
|-
| [[Boolite]] || ''[[Farscape]]'' || Humanoid
|-
| [[Borg (fictional aliens)|Borg]] || ''[[Star Trek]]'' ||
|-
| [[List of Star Wars races (A-E)#Bothan|Bothan]]s || ''[[Star Wars]]'' || Humanoid
|-
| [[Braal]]ians || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| Bradicor || [[Schlock Mercenary]] ||
|-
| Brains || ''[[The Adventures of Jimmy Neutron: Boy Genius]]'' ([[List of The Adventures of Jimmy Neutron: Boy Genius episodes#Television films|Win, Lose and Kaboom]]) ||
|-
| [[Breen]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Bricker]] || ''[[Star Trek]]'' ||
|-
| [[Briori]] || ''[[Star Trek]]'' ||
|-
| [[Brood (comics)|Brood]] || [[Marvel Comics]] ||
|-
| [[Brunnen G]] || ''[[LEXX]]'' || Humanoid
|-
| [[Brunali]] || ''[[Star Trek]]'' ||
|-
| [[Covenant (Halo)#Brutes|Brutes]] (''Jiralhanae'') || ''[[Halo (series)|Halo]]'' ||
|-
| [[Budong]] || ''[[Farscape]]'' ||
|-
| [[Bugs (Starship Troopers)|Bugs]] from [[Klendathu]] || ''[[Starship Troopers]]'' ||
|-
| Bulrathi || ''[[Master of Orion]]'' ||
|-
| [[Formics|Buggers]] || [[Ender's Game series]] ||
|-
| [[Bynars]] || ''[[Star Trek]]'' ||
|-
| [[Caitian]]s || ''[[Star Trek: The Animated Series]]'' || Feline humanoid
|-
| [[Calamarain]] || ''[[Star Trek]]'' ||
|-
| [[Caleban]] || [[Frank Herbert]]'s ''Whipping Star'' || invisible telepathic beings who are actually ''the minds of [[star]]s''
|-
| [[Calcinite]]s || ''[[X-COM: Terror from the Deep]]'' ||
|-
| [[Alliance-Union universe|Caliban]] || [[C. J. Cherryh]]'s [[Alliance-Union universe]] ||
|-
| Capelons || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| Caponians || ''[[Zak McKracken and the Alien Mindbenders]]'' ||
|-
| [[Cardassian]]s || ''[[Star Trek]]'' ||
|-
| [[Cargg]]ites || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| [[List of Doctor Who monsters and aliens#Carrionite|Carrionites]] || ''[[Doctor Who]]'' || Humanoid
|-
| [[Cathar]] || ''[[Star Wars]]'' ||
|-
| [[Cat People (comics)|Cat People]] || [[Marvel Comics]] || Feline humanoid
|-
| Catalytes || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Catteni]] || [[Anne McCaffrey]]'s [[Catteni Series]] ||
|-
| [[Cavaliers]] || [[Tommy & PJ]] ||
|-
| [[Celareon]] || [[Conquest: Frontier Wars]] ||
|-
| [[Celatid]]s || ''[[X-COM: UFO Defense]]'' ||
|-
| [[Celestials]] || [[Marvel Comics]] ||
|-
| [[Centauri]] || ''[[Babylon 5]]'' || Humanoid
|-
| [[Centrans]] || [[Christopher Anvil]]'s ''[[Pandora's Planet]]'' stories || Feline humanoids
|-
| [[Ceti eel]]s || ''[[Star Trek II: The Wrath of Khan]]'' || bug-like ear parasites from [[Ceti Alpha V]]
|-
| [[Chaethe]] || [[Kathy Tyers]]'s ''[[One Mind's Eye]]'' ||
|-
| [[Chalnoth]]s || ''[[Star Trek]]'' ||
|-
| Chamachies || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Changeling (Star Trek)|Changeling]]s || ''[[Star Trek]]'' ||
|-
| Chaos || ''[[I-War (Independence War)|Independence War]]'', aka ''I-War'', and ''[[Independence War 2: Edge of Chaos]]'' ||
|-
| [[Charrids]] || ''[[Farscape]]'' || Humanoid
|-
| [[Chatilian]]s || ''[[Battlelords of the 23rd Century]]'' || Humanoid
|-
| Cheblons || ''[[Imperium Galactica II: Alliances]]'' ||
|-
| [[Cheela]] || ''[[Dragon's Egg]]'' || inhabitants of [[neutron star]]
|-
| [[List of Doctor Who monsters and aliens#Chelonian|Chelonian]]s || ''[[Doctor Who]]'' novels ||
|-
| [[Chenjesu]] || ''[[Star Control]]'' ||
|-
| Chevanno || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[The Chanur Novels#Tc'a and Chi|Chi]] || [[C. J. Cherryh]]'s [[The Chanur novels|Chanur]] novels ||
|-
| [[Chigs]] || ''[[Space: Above and Beyond]]'' ||
|-
| [[Resistance: Fall of Man#The Chimera|Chimera]] || ''[[Resistance: Fall of Man]]'' ||
|-
| [[List of villains in Ben 10#Vilgax|Chimera Sui Generis]] || ''[[Ben 10]]'' ||
|-
| [[Chiss]] || ''[[Star Wars]]'' ||
|-
| [[Chmmr]] || ''[[Star Control]]'' ||
|-
| [[Cho-choi]] || [[Jack McDevitt]]'s ''[[Infinity Beach]]'' ||
|-
| [[Metroid (series)#Chozo|Chozo]] || [[Metroid (series)|Metroid]] ||
|-
| Chronomyst || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Chryssalid]]s || ''[[X-COM: UFO Defense]]'' ||
|-
| [[Cicadian]] || [[Mark Leach]]'s [[Marienbad My Love]] || Insectoid
|-
| [[Cinnrusskin]] || [[James White (author)|James White]]'s [[Sector General]] series ||
|-
| [[Cirronians]] || [[Tracker]] ||
|-
| [[Cizerack]] || ''[[Battlelords of the 23rd Century]]'' ||
|-
| Clairconctlar || ''[[Star Control 3]]'' ||
|-
| [[Clutch Turtles]] || [[Liaden universe]] ||
|-
| [[Cocytans]] || ''[[The Dig]]'' ||
|-
| Coeurl || ''[[The Voyage of the Space Beagle]]'' by [[A. E. van Vogt]] ||
|-
| [[Cognocenti]] || ''[[Star Trek]]'' ||
|-
| [[Colatas]] || ''[[Farscape]]'' || Humanoid
|-
| [[Cole]] || ''[[Tracker (TV series)|Tracker]]'' ||
|-
| [[Colonist (The X-Files)|Colonists]] || ''[[The X-Files]]'' ||
|-
| [[Colour out of space (species)|Colour out of space]] || [[H. P. Lovecraft]] ||
|-
| [[Colu]]ans || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| [[Combine (Half-Life 2)|Combine]] || ''[[Half-Life 2]]'' || an alien empire; note: many of the "Combine" seen in the game are actually humans that have been assimilated or collaborate as brutal police troopers
|-
| [[Coneheads]] || ''[[Saturday Night Live]]'' || Humanoid with conical heads
|-
| [[Coola]] (Cooler) || ''[[Dragon Ball Z]]'' ||
|-
| [[Coreeshi]] || ''[[Farscape]]'' || Humanoid
|-
| Corporal Giroro || ''[[Sgt. Frog]]'' ||
|-
| [[Corvallen]] || ''[[Star Trek]]'' ||
|-
| [[The Covenant (Halo)|Covenant, The]] || ''[[Halo (series)|Halo]]'' || collective of allied species
|-
| Creators || ''[[Nexus: The Jupiter Incident]]'' ||
|-
| Crites || ''[[Critters (movie)|Critters]]'' films || carnivorous hairballs
|-
| [[Cryptosporidium (Destroy All Humans!)|Crypto]] || ''[[Destroy All Humans!]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Cryon|Cryon]]s || ''[[Doctor Who]]'' || Humanoid
|-
| [[Ctarl-Ctarl]] || ''[[Outlaw Star]]'' ||
|-
| [[Cyberman|Cybermen]] || ''[[Doctor Who]]'' ||
|-
| Cybertronians || ''[[Transformers]]'' ||
|-
| [[Cybyota]] || ''[[Orion's Arm]]'' ||
|-
| [[Cylon (Battlestar Galactica)|Cylons]] || ''[[Battlestar Galactica]]'' ||
|-
| Cynoid || ''[[Master of Orion III]]'' ||
|-
| [[Cyrollan]] || ''[[The Journeyman Project]]'' ||
|-
| [[Daemonite]]s || [[Wildstorm]] ||
|-
| [[Dakkamite]]s || [[Marvel Comics]] || Humanoid
|-
| Daktaklakpak || ''[[Star Control 3]]'' ||
|-
| [[Dalek]]s || ''[[Doctor Who]]'' ||
|-
| [[Dance (comics)|The Dance]] || [[Marvel Comics]] || Humanoid
|-
| [[Dantari]] || ''[[Star Trek: New Frontier]]'' ||
|-
| Darjakr'Ul || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Dark Eldar]] || ''[[Warhammer 40,000]]'' || Humanoid
|-
| Darloks || ''[[Master of Orion]]'' ||
|-
| [[Darrian]]s || [[Traveller (rpg)|Traveller]] [[role-playing game|RPG]] ||
|-
| [[Darzok]] || ''[[Haegemonia: Legions of Iron]]'' ||
|-
| [[Daxamite]]s || [[DC Comics]] || Humanoid
|-
| [[Doctor Zoidberg|Decapodian]] || ''[[Futurama]]'' ||
|-
| [[Decepticon]] || [[:Category:Transformers|Transformers]] ||
|-
| [[Deep Ones]] || [[H. P. Lovecraft]] ||
|-
| [[Deep One (X-COM race)|Deep Ones]] || ''[[X-COM: Terror from the Deep]]'' ||
|-
| Defiance || ''[[Genesis Rising]]'' || band of many different races
|-
| [[Delphons]] || ''[[The History of the Galaxy]]'' series ||
|-
| [[Deltan]]s || ''[[Star Trek]]'' || Humanoid
|-
| [[Delvian]]s || ''[[Farscape]]'' || Humanoid
|-
| [[Demiurg (Warhammer 40,000)|Demiurg]] || ''[[Warhammer 40,000]]'' ||
|-
| [[Denean]]s || ''[[Farscape]]'' || Humanoid
|-
| [[Denebian]]s || ''[[Star Trek]]'' ||
|-
| [[Deng (species)|Deng]] || ''[[Keith Laumer]]'s Bolo series'' || Arachnoids
|-
| [[Denobulan]]s || ''[[Star Trek]]'' || Humanoid
|-
| [[Dentic]]s || ''[[Farscape]]'' ||
|-
| [[Dentrassi]]s || ''[[The Hitchhiker's Guide to the Galaxy]]'' ||
|-
| [[Deoxys]] || ''[[Pokémon]]'' ||
|-
| [[Dessarians]] || ''[[Tracker]]'' ||
|-
| [[Detrovite]] || ''[[Ben 10]]'' ||
|-
| [[Devaronian]] || ''[[Star Wars]]'' ||
|-
| [[Devastator (alien)|Devastators]] || [[One Mind's Eye]] ||
|-
| Devilukean || ''[[To Love-Ru]]'' || Humanoid
|-
| [[Dilbians]] || ''The Law-Twister Shorty'' and other stories by [[Gordon Dickson]] || Ursinoid
|-
| [[Dnyarri]] || ''[[Star Control]]'' ||
|-
| [[Dom Kavash]] || ''[[Freelancer (computer game)|Freelancer]]'' ||
|-
| [[Dominators]] || [[DC Comics]] || Humanoid
|-
| [[List of Doctor Who monsters and aliens#Dominator|Dominator]]s || ''[[Doctor Who]]'' ||
|-
| DomZ || ''[[Beyond Good and Evil (video game)|Beyond Good and Evil]]'' ||
|-
| Doog || ''[[Star Control 3]]'' ||
|-
| the Doublers || [[Stanisław Lem]]'s ''Eden'' || two-in-one semi-humanoid
|-
| [[Douwd]] || ''[[Star Trek]]'' ||
|-
| [[Draaknaars]] || ''[[Thor series]]'' ||
|-
| [[Drac]]s || [[Barry B. Longyear]]'s ''[[Enemy Mine]]'' and ''[[The Enemy Papers]]'' ||
|-
| [[Draconian (Doctor Who)|Draconian]]s || ''[[Doctor Who]]'' ||
|-
| Draenei || ''[[World of Warcraft]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Drahvin|Drahvin]]s || ''[[Doctor Who]]'' || Humanoid
|-
| [[Draic Kin]] || ''[[The Longest Journey]]'', ''[[Dreamfall]]'' ||
|-
| [[Drak]] || ''[[Farscape]]'' ||
|-
| [[Drakh]] || ''[[Babylon 5]]'' & ''[[Crusade (TV series)|Crusade]]'' ||
|-
| Drath || ''[[Galactic Civilizations|Galactic Civilizations: Altarian Prophecy]]'' ||
|-
| [[Drayan]] || ''[[Star Trek]]'' ||
|-
| Dread Lords || ''[[Galactic Civilizations II: Dread Lords]]'' ||
|-
| Drej || ''[[Titan A.E.]]'' ||
|-
| Drengin || ''[[Galactic Civilizations]]'' ||
|-
| [[Covenant (Halo)#Drones|Drones]] (''Yanme'e'') || ''[[Halo (series)|Halo]]'' ||
|-
| [[Dronkey]] || ''[[Shrek (series)|Shrek]]'' ||
|-
| [[Druuge]] || ''[[Star Control]]'' || Humanoid
|-
| [[List of Star Wars races (A-E)#Dug|Dug]]s || ''[[Star Wars]]'' ||
|-
| Duos from Uranus || ''[[Space Patrol (1962)]]'' ||
|-
| Dubtaks || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Durla]]ns || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| [[Duros]] || ''[[Star Wars]]'' ||
|-
| [[Dyson Aliens]] || [[Peter F. Hamilton]]'s "[[Commonwealth Saga#Pandora's Star|Pandora's Star]]" ||
|-
| [[Omnitrix#Ghostfreak|Ectonurite]] || ''[[Ben 10]]'' ||
|-
| [[Edo (Star Trek)|Edo]] || ''[[Star Trek]]'' ||
|-
| [[Ego the Living Planet]] || [[Marvel Comics]] ||
|-
| [[Ekhonides]] || ''[[Perry Rhodan]]'' ||
|-
| [[El-Aurian]]s || ''[[Star Trek]]'' || Humanoid
|-
| [[Eldar (Warhammer 40,000)|Eldar]] || ''[[Warhammer 40,000]]'' || Humanoid
|-
| [[Elder God (Cthulhu Mythos)|Elder Gods]] || [[Cthulhu Mythos]] ||
|-
| [[Elder Thing]] || [[Cthulhu Mythos]] ||
|-
| Eldorians || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| Elerians || ''[[Master of Orion II]]'' || Humanoid
|-
| [[Covenant Elite|Elites]] (''Sangheili'') || ''[[Halo (series)|Halo]]'' ||
|-
| [[Elitians]] || ||
|-
| [[Covenant (Halo)#Engineers|Engineers]] (''Huragok'') || ''[[Halo (series)|Halo]]'' ||
|-
| Eoladi || ''[[Master of Orion III]]'' ||
|-
| [[Energy Rider]] || ''[[Farscape]]'' ||
|-
| [[Ep-Hogers]] || ''[[Perry Rhodan]]'' ||
|-
| [[Eridani]] || ''[[Battlelords of the 23rd Century]]'' || Humanoid
|-
| [[Eschiff]] || ''[[London Wild]]'' || Feline Humanoid
|-
| Esmers || ''[[Little Big Adventure 2]]'' ||
|-
| E.T || ''[[E.T. The Extra-Terrestrial]]'' ||
|-
| [[Ethereal (alien)|Ethereals]] || ''[[X-COM: UFO Defense]]'' ||
|-
| [[Exobot]] || ''[[Star Trek]]'' ||
|-
| Exquivan || ''[[Star Control 3]]'' ||
|-
| Evon || ''[[Master of Orion III]]'' || Humanoid
|-
| [[Ewok]]s || ''[[Star Wars]]'' || Humanoid
|-
| [[Face of Boe]], The || ''[[Doctor Who]]'' ||
|-
| [[Face Dancers]] || ''[[Dune universe]]'' ||
|-
| [[Falleen]] || ''[[Star Wars]]'' ||
|-
| Felysians || ''[[Noctis]]'' ||
|-
| [[Fek'Ihri]] || ''[[Star Trek]]'' ||
|-
| [[List of Doctor Who villains#Fendahl|Fendahl]] || ''[[Doctor Who]]'' ||
|-
| [[Ferengi]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Ferronans]] || ''[[Perry Rhodan]]'' ||
|-
| [[Festival]] || [[Singularity Sky]] by [[Charles Stross]] ||
|-
| [[Fithp]] || [[Larry Niven]]'s [[Footfall]] || "Baby Elephants"
|-
| [[Flatcat]]s || [[Robert A. Heinlein]]'s ''[[The Rolling Stones (novel)|The Rolling Stones]]'', compare [[Tribble (Star Trek)|Tribble]] ||
|-
| Fleeblebroxians || ''[[Chip 'n' Dale's Rescue Rangers]]'' || Partially-telekinetic shape-shifters
|-
| [[Floater (alien)|Floaters]] || ''[[X-COM: UFO Defense]]'' ||
|-
| [[Flood (Halo)|Flood]] || ''[[Halo (series)|Halo]]'' ||
|-
| [[Omnitrix#Wildvine|Florauna]] || ''[[Ben 10]]'' ||
|-
| Fludentri || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Foamasi|Foamasi]] || ''[[Doctor Who]]'' ||
|-
| Foralbo || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Ford Prefect (character)|Ford Prefect]] || ''[[The Hitchhiker's Guide to the Galaxy|The Hitchhikers Guide to the Galaxy]]'' ||
|-
| [[Forerunner (Halo)|Forerunners]] || ''[[Halo (series)|Halo]]'' ||
|-
| [[Forerunners (The History of the Galaxy)|Forerunners]] || ''[[The History of the Galaxy]]'' series)
|-
| The [[List of Doctor Who monsters and aliens#Forest of Cheem|Forest of Cheem]] || ''[[Doctor Who]]'' ||
|-
| [[Formics]] || ''[[Ender Wiggin]]s'' cycle by [[Orson Scott Card]] ||
|-
| [[M-113 Creature|Fotiallian]] || ''[[Star Trek]]'' ||
|-
| [[Fott]] || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Frieza]] || ''[[Dragon Ball Z]] ||
|-
| Frutmaka || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| F'sherl-Ganni || [[Schlock Mercenary]], also called 'Gatekeepers' ||
|-
| [[Furbl]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Furling (Stargate)|Furlings]] (one of the [[Alliance of four great races|Four Great Races]]) || ''[[Stargate SG-1]]'' ||
|-
| [[Furon]]s || ''[[Destroy All Humans!]]'' || Humanoid
|-
| [[Futars]] || ''[[Dune universe]]'' ||
|-
| [[Gadmeer]] || [[Stargate SG-1]] ||
|-
| [[Gaim (Babylon 5)|Gaim]] || ''[[Babylon 5]]'' ||
|-
| [[Galactus]] || [[Marvel Comics]] ||
|-
| [[Galaxoid]] || ''[[Calvin and Hobbes]]'' ||
|-
| [[Omnitrix#Grey Matter|Galvan]] || ''[[Ben 10]]'' ||
|-
| [[Omnitrix#Upgrade|Galvanic Mechomorph]] || ''[[Ben 10]]'' ||
|-
| Gamilons/Gamilus || [[Space Battleship Yamato]]/[[Star Blazers]] || Humanoid
|-
| [[Gamorrean]] || ''[[Star Wars]]'' ||
|-
| [[List of Star Wars planets (E-G)#Gand|Gand]] || [[Star Wars]] ||
|-
| [[Gaols]] || ''[[Titan A.E.]]'' ||
|-
| [[Garthlings]] || [[David Brin]]'s [[Uplift Universe]] ||
|-
| The [[List of Doctor Who monsters and aliens#Gelth|Gelth]] || ''[[Doctor Who]]'' ||
|-
| Gemini || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Geonosis|Geonosian]] || [[Star Wars]] ||
|-
| [[Geth]] || [[Mass Effect]]
|-
| [[Gethen]]ians || [[Ursula K. Le Guin]]'s ''[[Ekumen]]'' stories) and other races
|-
| [[Ghamans]] || ''[[Perry Rhodan]]'' ||
|-
| Ghosts || ''[[Nexus: The Jupiter Incident]]'' ||
|-
| [[Gigan]] || [[Godzilla]] films
|-
| [[Gill Man|Gill Men]] || ''[[X-COM: Terror from the Deep]]'' ||
|-
| [[G'keks]] || [[David Brin]]'s [[Uplift Universe]] ||
|-
| [[Gladifers]] || [http://www.cookhimes.us/dennis.htm#glad Dennis Paul Himes] ||
|-
| [[Gloarft]] || [[Megas XLR]] ||
|-
| Gnolams || ''[[Master of Orion II]]'' ||
|-
| [[Gnosis]] || [[Xenosaga]] ||
|-
| [[Goa'uld]] || ''[[Stargate SG-1]]'' ||
|-
| Godan || ''[[Imperium Galactica II: Alliances]]'' ||
|-
| [[Gonzo (muppet)|Gonzo]] || [[The Muppets]] ||
|-
| [[Goola-Goola]] || ''[[Battlelords of the 23rd Century]]'' ||
|-
| Gorlocks || [[Win, Lose and Kaboom]] ||
|-
| [[Gorg (Nexus: The Jupiter Incident)|Gorg]] || ''[[Nexus: The Jupiter Incident]]'' ||
|-
| [[Gorn]] || ''[[Star Trek]]'' ||
|-
| [[Goszuls]] || ''[[Perry Rhodan]]'' ||
|-
| [[Omnitrix#Upchuck|Gourmand]] || ''[[Ben 10]]'' ||
|-
| Govorom || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Gowachin]] || [[Frank Herbert]]'s ''[[ConSentiency universe]]'')
|-
| G.R.A.I.S.E. || [[Melonpool]] ||
|-
| [[List of Star Wars races (F-J)#Gran|Gran]]s || ''[[Star Wars]]'' || Humanoid
|-
| The [[List of Doctor Who monsters and aliens#Graske|Graske]] || ''[[Doctor Who]]'' || Humanoid
|-
| [[Great Race of Yith]] || [[H. P. Lovecraft]] ||
|-
| Grendarl || ''[[Master of Orion III]]'' ||
|-
| [[Gretchin]]/Grotz || ''[[Warhammer 40,000]]'' || Humanoid
|-
| [[Greys]] || popular mythology ||
|-
| [[Grogs]] || [[Larry Niven]]'s [[Known Space]] ||
|-
| [[Grudeks]] || ''[[Farscape]]'' || Humanoid
|-
| Grue || ''[[Pitch Black (film)|Pitch Black]]'' || Humanoid
|-
| [[Grund]]s || [[Marvel Comics]] || Humanoid
|-
| [[Grundo]]s || [[Neopets]] ||
|-
| [[Covenant (Halo)#Grunts|Grunts]] (''Unggoy'') || ''[[Halo (series)|Halo]]'' ||
|-
| [[Guardians of the Universe]] || [[DC Comics]] || Humanoid
|-
| [[Gubru]] || [[David Brin]]'s [[Uplift Universe]] ||
|-
| [[List of Star Wars races (F-J)#Gungan|Gungan]]s || [[Star Wars]] ||
|-
| [[H'Harn]] || Edmond Hamilton's ''[[Star Kings]]'' series ||
|-
| [[Haggunenons]] || ''[[The Hitchhiker's Guide to the Galaxy]]'' ||
|-
| [[Halflings]] || [[Dances in the Snow]], [[Genome Novel|Genome]] ||
|-
| [[Hallessi]] || [[Harry Turtledove]]'s [[Worldwar]] book series || a subject species of [[The Race (Worldwar)|the Race]]
|-
| [[Hallucinoid]]s || ''[[X-COM: Terror from the Deep]]'' ||
|-
| [[Halosian]]s || ''[[Farscape]]'' || Humanoid
|-
| [[Hangi (Farscape)|Hangi]] || ''[[Farscape]]'' || Humanoid
|-
| [[The Chanur Novels#Hani|Hani]] || [[C. J. Cherryh]]'s [[The Chanur novels|Chanur]] novels ||
|-
| Hanshaks || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Harammins]] || ''[[The History of the Galaxy]]'' series)
|-
| Harika || ''[[Star Control 3]]'' ||
|-
| [[Haydonites]] || ''[[Robotech]]'' ||
|-
| [[Headcrabs]] || [[Half-Life (video game)|Half-Life]] ||
|-
| [[Headies]] || [[Noon Universe]] ||
|-
| [[Heechee]] || [[Frederik Pohl]] ||
|-
| Herald || ''[[Star Control 3]]'' ||
|-
| [[Hermat]] || ''[[Star Trek]]'' ||
|-
| High Ones || ''[[Elfquest]]'' || Humanoid
|-
| Hiigarans || ''[[Homeworld]]'' || Humanoid
|-
| [[Hirogen]] || ''[[Star Trek]]'' ||
|-
| [[Downbelow (planet)#The Hisa|Hisa]] || [[C. J. Cherryh]]'s [[Alliance-Union universe]] ||
|-
| Hivers || ''[[Sword of the Stars]]'' ||
|-
| [[Hiver]]s || [[Traveller (rpg)|Traveller]] RPG || modified starfish
|-
| [[Hoka SF-Race|Hoka]] || ''[[Poul Anderson]] and [[Gordon R. Dickson]]'' || teddy-bears imitating human history
|-
| [[Races and Species in The Hitchhiker's Guide to the Galaxy#Hooloovoo|Hooloovoo]] || ''[[The Hitchhiker's Guide to the Galaxy]]'' ||
|-
| [[Hoon SF Race|Hoon]] || [[David Brin]]'s [[Uplift Universe]] ||
|-
| [[List of Doctor Who monsters and aliens#Horda|Horda]] || ''[[Doctor Who]]'' ||
|-
| [[Hork-Bajir]] || [[K. A. Applegate]]'s ''[[Animorphs]]'' ||
|-
| [[Horta (Star Trek)|Horta]] || ''[[Star Trek]]'' ||
|-
| [[Howard the Duck]] || [[Marvel Comics]] ||
|-
| [[Hrossa]] || [[C. S. Lewis]]' [[Ransom Trilogy]] || Humanoid
|-
| [[Covenant (Halo)#Hunters|Hunters]] (''Lekgolo'') || ''[[Halo (series)|Halo]]'' ||
|-
| [[List of Star Trek races#Hunter|Hunters]] || ''[[Star Trek]]'' ||
|-
| [[Hur'q]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Hutt (Star Wars)|Hutts]] || [[Star Wars]] ||
|-
| [[Husnock]] || ''[[Star Trek]]'' ||
|-
| [[Hydran]]s || ''[[Star Trek]]'' || Humanoid
|-
| [[Hykraius]] || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| [[Hynerian]]s || ''[[Farscape]]'' || Humanoid
|-
| Iberons || ''[[Imperium Galactica II: Alliances]]'' ||
|-
| [[Ibs (Starplex)|Ibs]] || [[Robert J. Sawyer]]'s ''[[Starplex]]'' ||
|-
| [[Ice Warrior]]s || ''[[Doctor Who]]'' ||
|-
| Iconians || ''[[Galactic Civilizations II: Dread Lords]]'' ||
|-
| [[Iconian]]s || ''[[Star Trek]]'' ||
|-
| [[Alliance-Union universe|Iduve]] || [[C. J. Cherryh]]'s [[Alliance-Union universe]] ||
|-
| [[Ikrini]] || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Ilanic]]s || ''[[Farscape]]'' || Humanoid
|-
| [[Ilwrath]] || ''[[Star Control]]'' ||
|-
| Imsaeis || ''[[Master of Orion]]'' ||
|-
| [[Imsk]]ians || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| [[Metroid Prime 2: Echoes|Ing]] || [[Metroid Prime 2:Echoes]] ||
|-
| [[Insects (The History of the Galaxy)|Insects]] || ''[[The History of the Galaxy]]'' series ||
|-
| [[Interion]]s || ''[[Farscape]]'' || Humanoid
|-
| [[Invid (Robotech)|Invid]]/[[Inbit]] || ''[[Robotech|Robotech: The New Generation]]'' and their counterparts from ''[[Genesis Climber Mospeada]]'' || crab-like
|-
| [[Irkens]] || [[Invader Zim]] || Humanoid
|-
| [[Isanians]] || ''[[Perry Rhodan]]'' ||
|-
| [[Ishtarians]] || [[Poul Anderson]]'s ''[[Fire Time]]'' ||
|-
| [[Ithanites]] || ''[[Star Trek]]'' ||
|-
| Ithkul || ''[[Master of Orion III]]'' ||
|-
| [[Ixtl]] || ''[[The Voyage of the Space Beagle]]'' by [[A. E. van Vogt]] ||
|-
| [[Jaffa (Stargate)|Jaffa]] || ''[[Stargate SG-1]]'' ||
|-
| [[Jaridian]]s || ''[[Earth: Final Conflict]]'' || Humanoid
|-
| [[Jawa]] || ''Star Wars'' ||
|-
| [[Jem'Hadar]] || ''[[Star Trek]]'' ||
|-
| [[Jenova]] || ''[[Final Fantasy 7]]'' ||
|-
| [[Jezzedaic Priest]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Jiralhanae]] || ''[[Halo (series)|Halo]]'' ||
|-
| [[Jjaro]] || ''[[Marathon Trilogy]]'' ||
|-
| [[J'naii]] || ''[[Star Trek]]'' ||
|-
| [[Jocacean]]s || ''[[Farscape]]'' || Humanoid
|-
| [[Jotoki]] || [[Larry Niven]]'s [[Known Space]] ||
|-
| [[Cancelled (South Park)|Joozian]] || ''[[South Park]]'' ||
|-
| [[Judoon]] || ''[[Doctor Who]]'' || Humanoid
|-
| [[Kadi]] || ''[[Star Trek]]'' ||
|-
| [[Kafer]]s || [[2300AD]] || Humanoid
|-
| [[Kaled]]s || ''[[Doctor Who]]'' || Humanoid
|-
| [[Kalish]] || ''[[Farscape]]'' || Humanoid
|-
| Kal-Kriken || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Alliance-Union universe|Kalliran]] || [[C. J. Cherryh]]'s [[Alliance-Union universe]] ||
|-
| Kambuchka || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Kanamit]] || ''[[To Serve Man (The Twilight Zone)]]'' || Humanoid
|-
| [[Kang and Kodos]] || ''[[The Simpsons]]'' ||
|-
| [[Karemma]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Kariak]] || ''[[Haegemonia: Legions of Iron]]'' ||
|-
| [[Kazon]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Kdatlyno]] || [[Larry Niven]]'s [[Known Space]] ||
|-
| [[Kerons]] || ''[[Sgt. Frog]]'' ||
|-
| Key-Guardians || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[King Ghidorah]] || [[Godzilla]] films ||
|-
| [[Omnitrix#XLR8|Kineceleran]] || ''[[Ben 10]]'' ||
|-
| [[Kharaa]] || [[Natural Selection]] ||
|-
| [[Kherubim]] || [[Wildstorm]] ||
|-
| [[Khund]]s || [[DC Comics]] || Humanoid
|-
| [[Khurtarnan]] || ''[[Farscape]]'' || Humanoid
|-
| [[The Chanur Novels#Kif|Kif]] || [[C. J. Cherryh]]'s [[The Chanur novels|Chanur]] novels)
|-
| [[Kig-yar]] || ''[[Halo (series)|Halo]]'' ||
|-
| [[Alien races from the Godzilla films|Kilaak]]s || ''[[Destroy All Monsters]]'' ||
|-
| [[Kilrathi]] || ''[[Wing Commander (franchise)|Wing Commander]]'' games)
|-
| [[Kizanti]] || ''[[Battlelords of the 23rd Century]]'' || Humanoid
|-
| [[Kimera (species)|Kimera]] || ''[[Earth: Final Conflict]] ||
|-
| [[King Cold]] || [[Dragon Ball Z]] ||
|-
| [[Kivar (Roswell)|Kivar]] || [[Roswell (TV series)|Roswell]] ||
|-
| [[Klaestron]] || ''[[Star Trek]]'' ||
|-
| Klackons || ''[[Master of Orion]]'' ||
|-
| [[Klingon]]s || ''[[Star Trek]]'' || Humanoid
|-
| [[The Chanur Novels#Knnn|Knnn]] || [[C. J. Cherryh]]'s [[The Chanur novels|Chanur]] novels ||
|-
| Koozbanians || ''[[The Muppet Show]]'' ||
|-
| Korath || ''[[Galactic Civilizations II: Dark Avatar]]'' ||
|-
| Korbinites || [[Marvel Comics]] ||
|-
| Korx || ''[[Galactic Civilizations|Galactic Civilizations: Altarian Prophecy]]'' ||
|-
| [[K-PAXians]] || ''[[K-PAX]]'' ||
|-
| Kra'hen || ''[[Imperium Galactica II: Alliances]]'' ||
|-
| [[Kraked]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Kree]] || [[Marvel Comics]] || Humanoid
|-
| [[Kreel]] || ''[[Star Trek]]'' ||
|-
| Kreely || [[Schlock Mercenary]] ||
|-
| [[Kreetassan]] || ''[[Star Trek]]'' ||
|-
| [[Krenim]] || ''[[Star Trek]]'' ||
|-
| Kriken || ''[[Metroid Prime Hunters]]'' ||
|-
| Krith || [[Richard C. Meredith]]'s 'Timeliner Trilogy' ||
|-
| [[Krogan]] || [[Mass Effect]]
|-
| [[Kromagg]]s || [[Sliders]] ||
|-
| [[Kroot]] || ''[[Warhammer 40,000]]'' ||
|-
| Krynn || ''[[Galactic Civilizations II: Dark Avatar]]'' ||
|-
| [[Krynn (Journeyman Project)|Krynn]] || ''[[The Journeyman Project 2: Buried in Time]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Krynoid|Krynoid]]s || ''[[Doctor Who]]'' ||
|-
| [[Krypton (comics)|Kryptonian]]s || [[Superman]] || Humanoid
|-
| Kssthrata || [[Schlock Mercenary]] ||
|-
| K'tang || ''[[Star Control 3]]'' ||
|-
| [[Ktarian]] || ''[[Star Trek]]'' ||
|-
| [[Kymellian]]s || [[Marvel Comics]] || Humanoid body with horses head
|-
| [[Kymnar]] || [[FTL:2448]] [[role-playing game|RPG]] ||
|-
| [[Foreigner universe|Kyo]] || [[C. J. Cherryh]]'s ''Foreigner'' series ||
|-
| [[Kyulek]] || [[O.R.B: Off-World Resource Base]] ||
|-
| [[Kzinti]] || [[Larry Niven]]'s ''[[Known Space]]'' series and ''[[Star Trek: The Animated Series]]'' ||
|-
| [[Lallor]]ans || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| Lance Corporal Dororo || ''[[Sgt. Frog]]'' ||
|-
| [[Laxidasians]] || [[Marvel Comics]] || Humanoid
|-
| [[Lectroid]]s || ''[[The Adventures of Buckaroo Banzai Across the Eighth Dimension]]'' ||
|-
| [[Leerans]] || [[K. A. Applegate]]'s ''[[Animorphs]]'' ||
|-
| [[Lekgolo]] || ''[[Halo (series)|Halo]]'' ||
|-
| [[Leoniders]] || [[Noon Universe]] || Humanoid
|-
| [[Omnitrix#Stinkfly|Lepidopterran]] || ''[[Ben 10]]'' ||
|-
| [[Leviathan (Farscape)|Leviathan]] || ''[[Farscape]]'' ||
|-
| Liir || ''[[Sword of the Stars]]'' ||
|-
| [[List of villains in Ben 10#Limax|Limax]] || ''[[Ben 10]]'' ||
|-
| [[Lipul]] || [[Star Trek]] ||
|-
| [[Lithian]]s || [[James Blish]]'s ''[[A Case of Conscience]]'' ||
|-
| [[Livrai]] || [[Joe Haldeman]]'s ''Mindbridge'' ||
|-
| Lk (fungi type alien) || ''[[Star Control 3]]'' ||
|-
| [[Omnitrix#Benwolf|Loboan]] || ''[[Ben 10]]'' ||
|-
| [[Lobster Man|Lobster Men]] || ''[[X-COM: Terror from the Deep]]'' ||
|-
| [[List of Gears of War characters and adversaries#Locust Horde|Locust]] || ''[[Gears of War]]'' ||
|-
| [[Logrians]] || ''[[The History of the Galaxy]]'' series ||
|-
| Lohvo || [[Sluggy Freelance]] ||
|-
| [[Lombax]]es || ''[[Ratchet & Clank (series)|Ratchet & Clank]]'' ||
|-
| [[Loomi]] || [[Space Patrol (1962)|Space Patrol]] || creatures inhabiting [[Jupiter]] with heat-retaining skins
|-
| Lucratians || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| Luminoth || [[Metroid Prime 2: Echoes]] ||
|-
| [[Lunarians]] || ''[[Final Fantasy IV]]'' ||
|-
| [[Lurian]] || ''[[Star Trek]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Lurman|Lurman]]s || ''[[Doctor Who]]'' || Humanoid
|-
| [[Luxan]]s || ''[[Farscape]]'' || Humanoid
|-
| [[Ly-Cilph]] || ''[[The Night's Dawn Trilogy]]'' ||
|-
| [[Lycocians]] || ''[[Star Trek]]'' ||
|-
| Lyrans || ''[[Star Fleet Battles|Star Fleet Universe]]'' ||
|-
| [[M-113 Creature]] || ''[[Star Trek]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Macra|Macra]] || ''[[Doctor Who]]'' || Crustacoid
|-
| Magog || ''[[Andromeda (TV series)|Andromeda]]'' ||
|-
| [[The Chanur Novels#Mahendo'sat|Mahendo'sat]] || [[C. J. Cherryh]]'s [[The Chanur novels|Chanur]] novels ||
|-
| Maians || ''[[Perfect Dark]]'' ||
|-
| [[Alliance-Union universe|Majat]] || [[C. J. Cherryh]]'s [[Alliance-Union universe]] ||
|-
| [[Malon]]s || ''[[Star Trek]]'' ||
|-
| Mangalores || ''[[The Fifth Element]]'' || Humanoid
|-
| [[Mantis]] || [[Conquest: Frontier Wars]] ||
|-
| [[Fictional races in South Park#Marklar|Marklars]] || [[South Park]] ||
|-
| Marmosians || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Martian]]s || [[H. G. Wells]]' ''[[The War of the Worlds (novel)|The War of the Worlds]]'' ||
|-
| [[Martian]]s || [[Edgar Rice Burroughs]]'s ''[[Barsoom]]'' series || Humanoid
|-
| [[Martian]]s || [[Marvin the Martian]] from Looney Tunes and Duck Dodgers ||
|-
| [[Martian]]s || [[Premendra Mitra]]'s ''Mangalbairi'' (''The Martian Enemies'') ||
|-
| [[Martian]]s || [[Ray Bradbury]]'s ''[[The Martian Chronicles]]'' || Humanoid
|-
| [[Martian]]s || ''[[Aelita]]'' ([[1924 in film|1924 movie]]) || Humanoid
|-
| [[Martian]]s || ''[[Mars Attacks]]'' ([[Topps]] [[trading card]]s) and ''[[Mars Attacks!]]'' ([[Tim Burton]] movie) || Humanoid
|-
| [[Martian]]s || ''[[Quatermass and the Pit]]'' ||
|-
| [[Martian]]s || [[Larry Niven]]'s [[Known Space]] ||
|-
| [[Martian Manhunter]] || [[DC Comics]] ||
|-
| [[Masters (The Tripods)|Masters]] || ''[[The Tripods]]'' ||
|-
| [[Mazian]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| Mebes || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Medusan]]s || ''[[Star Trek]]'' ||
|-
| [[Fusion (comics)#Beolvoch|Meehooks]] || ''[[Fusion (comics)|Fusion]]'' comic book series || dinosaurs with fur
|-
| Meklars || ''[[Master of Orion]]'' ||
|-
| Melconians || ''[[Keith Laumer]]'s Bolo series'' || canine-like humanoids
|-
| [[Melmac (planet)|Melmacians]] || ''[[ALF (television)|ALF]]'' ||
|-
| [[Melnorme]] || ''[[Star Control]]'' ||
|-
| [[Melotians]] || [[Melonpool]] ||
|-
| [[List of Doctor Who monsters and aliens#Menoptra|Menoptra]] || ''[[Doctor Who]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Mentor|Mentors]] || ''[[Doctor Who]]'' ||
|-
| [[Merseian]]s || ''[[Technic History]]'' by [[Poul Anderson]] ||
|-
| [[Mesklin]]ites || [[Hal Clement]]'s ''[[Mission of Gravity]]'' || millipede-like
|-
| [[Methorian]]s || [[Barrington J. Bayley]]'s [[Zen Gun]] || gaseous giant-giant dwellers
|-
| [[Metroid (series)#Metroids|Metroid]] || [[Metroid (series)|Metroid series]] ||
|-
| [[Metrons]] || ''[[Star Trek]]'' ||
|-
| [[Microman]] || [[Microman]] ||
|-
| [[Minbari]] || ''[[Babylon 5]]'' || Humanoid
|-
| Minions || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Minosian]]s || ''[[Star Trek]]'' ||
|-
| [[Mintakan]]s || ''[[Star Trek]]'' ||
|-
| [[Miradorn]] || ''[[Star Trek]]'' ||
|-
| [[Misha]] || ''[[Battlelords of the 23rd Century]]'' || Humanoid
|-
| [[Mmrnmhrm]] || ''[[Star Control]]'' ||
|-
| [[List of Star Wars races (K-O)#Mon Calamari|Mon Calamari]] || [[Star Wars]] ||
|-
| [[Mondoshawan]] || ''[[The Fifth Element]]'' || Humanoid
|-
| [[List of Doctor Who monsters and aliens#Monoid|Monoids]] || ''[[Doctor Who]]'' ||
|-
| The [[List of Aqua Teen Hunger Force villains#Mooninites|Mooninites]] || ''[[Aqua Teen Hunger Force]]'' (individually: Igninokt and Err) ||
|-
| Mork || ''[[Mork and Mindy]]'' ||
|-
| [[Morlocks]] || [[H. G. Wells]]' ''[[The Time Machine]]'' ||
|-
| [[Morlocks (disambiguation)|Morlocks]] || [[Larry Niven]]'s [[Known Space]] ||
|-
| [[List of Doctor Who monsters and aliens#Morok|Morok]]s || ''[[Doctor Who]]'' || Humanoid
|-
| [[Mor-Taxans]] || ''[[War of the Worlds (TV series)|War of the Worlds]]'' (TV series - first season) ||
|-
| Morthren || ''[[War of the Worlds (TV series)|War of the Worlds]]'' (TV series - second season) ||
|-
| [[Movellan]]s || ''[[Doctor Who]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Moxx of Balhoon|Moxx of Balhoon]] || ''[[Doctor Who]]'' || Humanoid
|-
| [[Mri (fictional alien species)|Mri]] || [[C. J. Cherryh]]'s ''Faded Sun'' trilogy || Humanoid
|-
| [[Mr. Saturn]] || ''[[EarthBound]]'' ||
|-
| Mrrshan || ''[[Master of Orion]]'' ||
|-
| [[Mudokons]] || ''[[Oddworld]]'' series ||
|-
| [[Muton]]s || ''[[X-COM: UFO Defense]]'' ||
|-
| [[Mutzachan]]s || ''[[Battlelords of the 23rd Century]]'' || Humanoid
|-
| Muuh || ''[[Orion's Arm]]'' ||
|-
| Mycon || ''[[Star Control]]'' ||
|-
| The [[Mysterons]] || ''[[Captain Scarlet and the Mysterons]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Naglon|Naglon]] || ''[[Doctor Who]]'' || Humanoid
|-
| Nairnama || ''[[I-War (Independence War)|Independence War]]'', aka ''I-War'' ||
|-
| [[Namekian]] || ''[[Dragon Ball (franchise)|Dragon Ball]]'' || Humanoid
|-
| [[Narn]] || ''[[Babylon 5]]'' || Humanoid
|-
| [[Nausicaan]]s || ''[[Star Trek]]'' ||
|-
| Neadlehead || [[Win, Lose and Kaboom]] ||
|-
| [[Nebari]] || ''[[Farscape]]'' || Humanoid
|-
| Nebular || ''[[Calvin and Hobbes]]'' ||
|-
| Necris || ''[[Unreal tournament]]'' ||
|-
| [[Necrons]] || ''[[Warhammer 40,000]]'' ||
|-
| [[Alliance-Union universe|Nemet]] || [[C. J. Cherryh]]'s [[Alliance-Union universe]] ||
|-
| Nephilim || ''[[Wing Commander: Prophecy]]'' ||
|-
| Neptunians || ''[[Futurama]]'' ||Humanoid
|-
| [[Neutrals (Futurama)|Neutrals]] || ''[[Futurama]]'' || Humanoid
|-
| [[New Gods]] || [[Jack Kirby's Fourth World|The Fourth World]] in [[DC Comics]] ||
|-
| New Orions || ''[[Master of Orion III]]'' ||
|-
| [[Nicassar]] || ''[[Warhammer 40,000]]'' ||
|-
| Niea || ''[[Niea 7]]'' ||
|-
| [[Nietzschean (Andromeda)|Nietzschean]]s || ''[[Andromeda (TV series)|Andromeda]]'' ||
|-
| [[Nihilanth]] || ''[[Half-Life (video game)|Half-Life]]'' ||
|-
| Nimbuloids || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[N'Kull]] || ''[[Advent Rising]]'' ||
|-
| [[List of Crash Bandicoot characters#Nitros Oxide|Nitros Oxide]] || ''[[Crash Bandicoot]]'' series ||
|-
| Nodulians || ''[[Tracker]]'' ||
|-
| Nomads || ''[[Freelancer (computer game)|Freelancer]]'' ||
|-
| Nomes || [[Terry Pratchett]]'s ''[[The Bromeliad]]'' ||
|-
| Nommo || ''[[Master of Orion]]'' ||
|-
| [[Nox (Stargate)|Nox]] || ''[[Stargate SG-1]]'' || Humanoid
|-
| Nyronds || ''passim'' in the works of [[Zander Nyrond]]; occasionally in those of his "brother" [[Soren Nyrond|Soren]] ||
|-
| [[Oa]]ns || [[DC Comics]] || Humanoid
|-
| [[Oannes]] || [[Babylonia]]n mythology || Humanoid
|-
| [[Oankali]] || [[Octavia Butler]]'s [[Xenogenesis]] series ||
|-
| Ob'enn || [[Schlock Mercenary]] ||
|-
| [[Ocampa]] || ''[[Star Trek]]'' || Humanoid
|-
| Oculons || ''[[Ascendancy (computer game)|Ascendancy]]'' || Humanoid
|-
| [[List of Doctor Who monsters and aliens#Ogri|Ogri]] || ''[[Doctor Who]]'' ||
|-
| [[Ogron]]s || ''[[Doctor Who]]'' || Humanoid
|-
| [[Old Ones (Warhammer 40,000)|Old Ones]] || ''[[Warhammer 40,000]]'' ||
|-
| Omicronians / Popplers || ''[[Futurama]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Ood|Ood]] || ''[[Doctor Who]]'' || Humanoid
|-
| [[List of Doctor Who monsters and aliens#Optera|Optera]] || ''[[Doctor Who]]'' ||
|-
| [[Orando]]ans || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| Orfa || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Organian]]s || ''[[Star Trek]]'' ||
|-
| [[Ori]] || ''[[Stargate SG-1]]'' ||
|-
| [[Orion (Star Trek)|Orion]] || ''[[Star Trek]]'' ||
|-
| [[Orion Rogue]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| Orions || ''[[Master of Orion]]'' ||
|-
| [[Orkans]] || ''[[Mork and Mindy]]'' ||
|-
| [[Orks]] || ''[[Warhammer 40,000]]'' || Humanoid
|-
| [[Orsians]] || [[Tracker]] ||
|-
| [[Orthean]]s || [[Mary Gentle]]'s ''Golden Witchbreed'' || Humanoid
|-
| Ortog || ''[[Star Control]]'' ||
|-
| [[Orz (Star Control)|Orz]] || ''[[Star Control]]'' ||
|-
| [[Outsider (Known Space)|Outsiders]] || [[Larry Niven]]'s [[Known Space]] ||
|-
| [[Overlords]] || ''[[Childhood's End]]'' by [[Arthur C. Clarke]] ||
|-
| Owa || ''[[Star Control 3]]'' ||
|-
| Paan'uri || ''[[Schlock Mercenary]]'' || [[Dark matter]] entities
|-
| [[Pah Wraith]] || ''[[Star Trek]]'' ||
|-
| [[Pak Protector|Pak, a.k.a. Protectors]] || [[Larry Niven]]'s ''[[Known Space]]'' books || Humanoid, superintelligent
|-
| [[Pakled]] || ''[[Star Trek]]'' ||
|-
| Parillatians || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| Pascalenes || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Pascian]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Peliar Zel]] || ''[[Star Trek]]'' ||
|-
| [[Pemalites]] || [[K. A. Applegate]]'s ''[[Animorphs]]'' ||
|-
| [[Pequeninos]] || [[Orson Scott Card]]'s ''[[Speaker for the Dead]]'' ||
|-
| [[Omnitrix#Diamondhead|Petrosapien]] || ''[[Ben 10]]'' ||
|-
| [[Pfifltrig]] || [[C. S. Lewis]]' [[Ransom Trilogy]] ||
|-
| [[Pfhor]] || ''[[Marathon Trilogy]]'' ||
|-
| [[Phagor]]s || [[Brian W. Aldiss]]'s ''[[Heliconia]]'' series || Humanoid
|-
| [[Phalanx (comics)|Phalanx]] || [[Marvel Comics]] ||
|-
| [[Phentari]] || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Phibian (Dune)|Phibians]] || ''[[Dune universe]]'' ||
|-
| Phleebhutinskis || ''[[Space Quest]]'' ||
|-
| [[Phtagurs]] || ''[[Metabarons]]'' ||
|-
| [[Pierson's Puppeteer]]s || [[Larry Niven]]'s ''[[Ringworld]]'' and ''[[Known Space]]'' series || three legs, two manipulative heads
|-
| [[Pilot (Farscape race)|Pilots]] || ''[[Farscape]]'' ||
|-
| Pinkunz || ''[[Space Quest]]'' ||
|-
| [[Omnitrix#Ripjaws|Pisciss Volanns]] || ''[[Ben 10]]'' ||
|-
| [[Pkunk]] || ''[[Star Control]]'' ||
|-
| Ploxis || ''[[Star Control 3]]'' ||
|-
| Porquinhos || [[Orson Scott Card]]'s ''[[Speaker for the Dead]]'' || Humanoid
|-
| [[Posleen]] || [[John Ringo]]'s "[[Legacy of the Aldenata]]" ||
|-
| [[Pr?| tan]]s || ''[[The High Crusade]]'' ||
|-
| [[Predator (alien)|"Predator" aliens]] || ''Predator'' movie series ||
|-
| Primes || [[Peter F. Hamilton]]'s "[[Commonwealth Saga]]" ||
|-
| Private Tamama || ''[[Sgt. Frog]]'' ||
|-
| [[Progenitors (alien race)|Progenitors]] || [[David Brin]]'s [[Uplift Universe]] ||
|-
| [[Covenant (Halo)#Prophets|Prophets]] (''San 'Shyuum'') || ''[[Halo (series)|Halo]]'' ||
|-
| [[Prophet (Star Trek)|Prophets]] || ''[[Star Trek]]'' ||
|-
| Proteans || [[AdventureQuest]] || morphing metallic blobs
|-
| [[Alien Races in Mass Effect#Protheans|Protheans]] || [[Mass Effect]]
|-
| [[Protoss]] || [[StarCraft]] ||
|-
| Psilons || ''[[Master of Orion]]'' ||
|-
| [[Psychlo]]s || ''[[Battlefield Earth]]'' || Humanoid
|-
| [[Psychon]]s || [[Space: 1999]] ||
|-
| Dremer || [[Gene Brewer]]'s ''[[K-PAX]]'' ||
|-
| [[Protoculture (anime)|Protoculture]] || ''[[The Super Dimension Fortress Macross|Macross]]'' series ||
|-
| [[Polionation Tech]] || [[Sims 2]] ||
|-
| [[The Puppet Masters]] || [[Robert A. Heinlein]] book of the same name ||
|-
| [[Purple Aliens]] || [[It's Walky!]] ||
|-
| [[Omnitrix#Heatblast|Pyronite]] || ''[[Ben 10]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Pyrovile|Pyroviles]] || ''[[Doctor Who]]'' || Humanoid
|-
| [[Python Lizard]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Q (Star Trek)|Q]] || ''[[Star Trek]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Quark|Quark]]s || ''[[Doctor Who]]'' ||
|-
| [[List of Star Wars races (P-T)#Quarren|Quarren]], a.k.a. "Squid Heads" || [[Star Wars]] ||
|-
| [[Quintaglio]] || [[Robert J. Sawyer]] ||
|-
| [[Quintessons|Quintesson]] || [[:Category:Transformers|Transformers]] ||
|-
| [[Qou'thalas]] || ''[[The Journeyman Project 3: Legacy of Time]]'' ||
|-
| [[Quarians]] || [[Mass Effect]]
|-
| [[Qward]]ians || [[DC Comics]] ||
|-
| Raas || ''[[Master of Orion III]]'' ||
|-
| Rabotevs || [[Harry Turtledove]]'s [[Worldwar]] book series || a subject species of [[The Race (Worldwar)|the Race]]
|-
| [[Race, The]] || [[Moreau Series]] || Amoeboid
|-
| [[The Race (Worldwar)|The Race]] || [[Harry Turtledove]]'s [[Worldwar]] book series || Reptilian
|-
| [[Alien races in Mass Effect#Rachni|Rachni]] || [[Mass Effect]]
|-
| Raiel || [[Peter F. Hamilton]]'s "[[Commonwealth Saga#Pandora's Star|Pandora's Star]]" ||
|-
| Rako-Gorda || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Ram Python]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Rancor]]s || ''[[Star Wars]]'' ||
|-
| Raptors || ''[[Nexus: The Jupiter Incident]]'' ||
|-
| [[Slitheen|Raxacoricofallapatorians]] || ''[[Doctor Who]]'' ||
|-
| [[Re'ol]] || ''[[Stargate SG-1]]'' || Humanoid
|-
| [[List of Doctor Who monsters and aliens#Reaper|Reaper]]s || ''[[Doctor Who]]'' ||
|-
| [[Reaper (alien)|Reapers]] || ''[[X-COM: UFO Defense]]'' ||
|-
| [[Alien races in Mass Effect#Reapers|Reapers]] || [[Mass Effect]]
|-
| [[Alliance-Union universe|Regul]] || [[C. J. Cherryh]]'s [[Alliance-Union universe]] ||
|-
| [[Relgarian]]s || ''[[Farscape]]'' || Humanoid
|-
| [[Remans]] || ''[[Star Trek]]'' ||
|-
| [[Replicator (Stargate)|Replicators]] || ''[[Stargate SG-1]]'' ||
|-
| [[Re'tu]] || ''Stargate SG-1'' ||
|-
| [[Rigellians (Simpsons)]] (including [[Fictional characters within The Simpsons#Kang and Kodos|Kang and Kodos]]) || ''[[The Simpsons]]'' ||
|-
| [[Rigellians]] || [[Lensman]] books || barrel-shaped with four tentacular arms and four stubby legs
|-
| [[Riim]] || ''[[The Voyage of the Space Beagle]]'' by [[A. E. van Vogt]] ||
|-
| [[List of Doctor Who monsters and aliens#Rill|Rill]]s || ''[[Doctor Who]]'' ||
|-
| [[Rimerunner]] || ''[[Expedition]]'' ||
|-
| [[List of Star Trek planets: R-S|Risa]] || ''[[Star Trek]]'' ||
|-
| [[Robotech Masters]] || ''[[Robotech]]'' ||
|-
| [[List of Star Wars races (P-T)#Rodian|Rodian]]s || [[Star Wars]] ||
|-
| [[Roger the Alien]] || ''[[American Dad]]''
|-
| [[Romulan]]s || ''[[Star Trek]]'' || Humanoid
|-
| [[Rull (fiction)|Rull]] || ''[[The War against the Rull]]'' by [[A. E. van Vogt]] ||
|-
| [[Rutan Host|Rutans]] || ''[[Doctor Who]]'' ||
|-
| Ryqril || [[Timothy Zahn]]'s ''[[The Blackcollar]]'' ||
|-
| [[Saiyan]] || ''[[Dragon Ball Z]]'' || Humanoid
|-
| Sakkra || ''[[Master of Orion]]'' ||
|-
| Sal-Kadeem || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Salarians]] || [[Mass Effect]]
|-
| [[Sandworm (Dune)|Sandworm]] || ''[[Dune universe]]'' ||
|-
| [[Sangheili]] || ''[[Halo (series)|Halo]]'' ||
|-
| [[San 'Shyuum]] || ''[[Halo (series)|Halo]]'' ||
|-
| Sariens || ''[[Space Quest]]'' ||
|-
| Sarturians || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Sau-Bau]] || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Scarran]]s || ''[[Farscape]]'' || Humanoid
|-
| [[Schniarfeur]]s || ''[[Valérian and Laureline]]'' ||
|-
| [[Scorvian]]s || ''[[Farscape]]'' || Humanoid
|-
| [[Scrin]] || ''[[Command & Conquer]]'' ||
|-
| [[Sebacean]]s || ''[[Farscape]]'' ||
|-
| Second through Last Men || [[Olaf Stapledon]]'s ''[[Last and First Men]]'' ||
|-
| [[Sectoid]]s || ''[[X-COM: UFO Defense]]'' ||
|-
| Seekers || ''[[Advent Rising]]'' ||
|-
| [[Selay]] || ''[[Star Trek]]'' ||
|-
| [[Factions in Supreme Commander#Seraphim|Seraphim]] || ''[[Supreme Commander]]'' ||
|-
| [[Sergeant Keroro]] || ''[[Sgt. Frog]]'' ||
|-
| Sergeant Major Kururu || ''[[Sgt. Frog]]'' ||
|-
| [[Séroni]] || ''[[Space Trilogy]]'' || Humanoid
|-
| [[Shadow (Babylon 5)|Shadows]] || ''[[Babylon 5]]'' ||
|-
| [[Shalka]] || ''[[Doctor Who]] ||
|-
| [[Alliance-Union universe|Sharrh]] || [[C. J. Cherryh]]'s [[Alliance-Union universe]] ||
|-
| [[Sheeda]] || [[Grant Morrison]]'s ''Seven soldiers of Victory'' megaseries ||
|-
| [[Sheliak]] || ''[[Star Trek]]'' ||
|-
| Shevar || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[Sheyang]]s || ''[[Farscape]]'' ||
|-
| [[Shi'ar]] || [[Marvel Comics]] || Humanoid
|-
| Shinari || ''[[Imperium Galactica II: Alliances]]'' ||
|-
| [[Shingouz]] || ''[[Valérian and Laureline|Valérian]]'' comics ||
|-
| Shivans || ''[[Descent: FreeSpace — The Great War]]'' ||
|-
| [[Shoggoth]]s || [[H. P. Lovecraft]] ||
|-
| [[Shofixti]] || ''[[Star Control]]'' ||
|-
| [[Alliance-Union universe|Shonunin]] || [[C. J. Cherryh]]'s [[Alliance-Union universe]] ||
|-
| [[Shroobs]] || ''[[Mario & Luigi: Partners in Time]]'' ||
|-
| [[Silacoid]]s || ''[[X-COM: UFO Defense]]'' ||
|-
| Silicoids || ''[[Master of Orion]]'' ||
|-
| [[Silfen]] || [[Peter F. Hamilton]]'s "[[Commonwealth Saga#Pandora's Star|Pandora's Star]]"|| Humanoid
|-
| [[Silver Surfer]] || [[Marvel Comics]] ||
|-
| [[Skaarj]] || [[Unreal (series)]] ||
|-
| [[Skedar]] || [[Perfect Dark]] ||
|-
| [[Skinnies]] || ''[[Starship Troopers]]'' || Arachnoids
|-
| [[Skolarians]] || ''[[Zak McKracken and the Alien Mindbenders]]'' ||
|-
| [[Skrull]]s || [[Marvel Comics]] ||
|-
| Slavers (see [[Thrint]]) || [[Larry Niven]]'s [[Known Space]] ||
|-
| [[Slitheen]] || ''[[Doctor Who]]'' ||
|-
| [[List of villains in Ben 10#Sludges|Sludge]] || ''[[Ben 10]]'' ||
|-
| [[Slylandro]] || ''[[Star Control]]'' ||
|-
| [[Snakeman|Snakemen]] || ''[[X-COM: UFO Defense]]'' ||
|-
| [[Snark]]s || [[Marvel Comics]] ||
|-
| [[Snotling]]s || ''[[Warhammer 40,000]]'' || Humanoid
|-
| Snovemdomas || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| Solaris || [[Stanisław Lem]]'s ''[[Solaris (novel)|Solaris]]'' ||
|-
| [[Solomon Family]] || ''[[3rd Rock from the Sun]]'' ||
|-
| [[Solon (Haegemonia: Legions of Iron)|Solon]] || ''[[Haegemonia: Legions of Iron]]'' ||
|-
| [[Son'a]] || ''[[Star Trek]]'' ||
|-
| [[Sontaran]]s || ''[[Doctor Who]]'' || Humanoid
|-
| Soomanii || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Sorn]] || [[C. S. Lewis]]' [[Ransom Trilogy]] ||
|-
| [[Soro]] || [[David Brin]]'s [[Uplift Universe]] ||
|-
| [[Sosiqui]] || ''[[The Journeyman Project 3: Legacy of Time]]'' ||
|-
| [[Metroid (series)#Space Pirates|Space Pirates]] || Metroid series ||
|-
| [[Spathi]] || ''[[Star Control]]'' ||
|-
| [[Species 8472]] || ''[[Star Trek]]'' ||
|-
| [[The Spiridons|Spiridons]] || ''[[Doctor Who]]'' ||
|-
| [[Spirit (Stargate)|Spirits]] || ''[[Stargate SG-1]]'' || Humanoid
|-
| [[Omnitrix#Ditto|Splixston]] || ''[[Ben 10]]''
|-
| [[S'pht]] || ''[[Marathon Trilogy]]'' ||
|-
| [[Spock]] || ''[[Star Trek]]'' ||
|-
| [[Spoo]] || ''[[Babylon 5]]'' ||
|-
| Squiz-Quijy || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Strogg]] || ''[[Quake II]]'' and ''[[Quake 4]]'' ||
|-
| [[The Chanur Novels#Stsho|Stsho]] || [[C. J. Cherryh]]'s [[The Chanur novels|Chanur]] novels ||
|-
| [[Suliban]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Superman]] || ''[[Superman I]]-IV & [[Superman Returns]]'' ||
|-
| [[Supox]] || ''[[Star Control]]'' ||
|-
| [[Surrakin]] | ''[[Stargate SG-1]]'' || Humanoid
|-
| Swaparamans || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Sycorax|Sycorax]] || ''[[Doctor Who]]'' || Humanoid
|-
| [[Sye-Men]] || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Sykarians]] || ''[[Farscape]]'' || Humanoid
|-
| [[Syreen]] || ''[[Star Control]]'' || Humanoid
|-
| [[Taalo]] || ''[[Star Control]]'' ||
|-
| [[Taelons]] || [[Gene Roddenberry]]'s ''[[Earth: Final Conflict]]'' || Humanoid
|-
| Tachidi || ''[[Master of Orion III]]'' ||
|-
| [[Tagorians]] || [[Noon Universe]] ||
|-
| [[Tai]] || ''[[Genome (Novel)|Genome]]'' ||
|-
| Taiidan || ''[[Homeworld]]'' || Humanoid
|-
| [[Tak Tak]] || ''[[Star Trek]]'' ||
|-
| Talan || ''[[Outcast (game)|Outcast]]'' ||
|-
| [[Talarian]]s || ''[[Star Trek]]'' ||
|-
| [[Talaxian]]s || ''[[Star Trek]]'' || Humanoid
|-
| [[Tallerians (Warhammer 40,000)|Tallerians]] || ''[[Warhammer 40,000]]'' ||
|-
| [[Talok]]ians || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| [[Talosian]]s || ''[[Star Trek]]'' ||
|-
| [[Tamarian]]s || ''[[Star Trek]]'' ||
|-
| [[Tandaran]]s || ''[[Star Trek]]'' ||
|-
| [[Tandu]] || [[David Brin]]'s [[Uplift Universe]] ||
|-
| [[Tanndai Techknight]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Tarellian]]s || ''[[Star Trek]]'' ||
|-
| [[Tarentatek]]s || ''[[Star Wars]]'' ||
|-
| [[Tarkans]] || ''[[Farscape]]'' || Humanoid
|-
| Tarkas || ''[[Sword of the Stars]]'' ||
|-
| [[Tasoth]] || ''[[X-COM: Terror from the Deep]]'' ||
|-
| [[Tatanga]] || ''[[Super Mario Land]]'' || Humanoid
|-
| [[Tau (Warhammer 40,000)|Tau]] || ''[[Warhammer 40,000]]'' || Humanoid
|-
| [[Tavlek]]s || ''[[Farscape]]'' || Humanoid
|-
| [[Taxxons]] || [[K. A. Applegate]]'s ''[[Animorphs]]'' ||
|-
| [[The Chanur Novels#Tc'a and Chi|Tc'a]] || [[C. J. Cherryh]]'s [[The Chanur novels|Chanur]] novels ||
|-
| [[Technarchy]] || [[Marvel Comics]] ||
|-
| [[Tecresean]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Tellarite]]s || ''[[Star Trek]]'' ||
|-
| Temarkians || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Tenctonese]] || ''[[Alien Nation]]'' ||
|-
| [[Tenebrian]]s || [[Hal Clement]]'s ''[[Close to Critical]]'' ||
|-
| [[Tentaculat]]s || ''[[X-COM: Terror from the Deep]]'' ||
|-
| [[Terellian]] || ''[[Star Trek]]'' || Humanoid
|-
| [[List of Doctor Who monsters and aliens#Terileptil|Terileptil]]s || ''[[Doctor Who]]'' ||
|-
| Terran || ''[[Final Fantasy IX]]'' ||
|-
| [[Terra Novans]] || ''[[Star Trek]]'' ||
|-
| [[Terrelian]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Terrellian]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Terrian]]s || ''[[Earth 2 (TV series)|Earth 2]]'' || Humanoid
|-
| [[Omnitrix#Fourarms|Tetramand]] || ''[[Ben 10]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Tetrap|Tetrap]]s || ''[[Doctor Who]]'' ||
|-
| [[Thal (Doctor Who)|Thal]]s || ''[[Doctor Who]]'' ||
|-
| Thalan || ''[[Galactic Civilizations II: Dread Lords]]'' ||
|-
| [[Thalonian]] || ''[[Star Trek]]'' ||
|-
| [[Than-Thre-Kull]] || ''[[Andromeda]]'' || Insectoids
|-
| [[Thanagarian]]s || [[DC Comics]] ||
|-
| [[Thargoids]] || ''[[Elite (computer game)|Elite]]'' ||
|-
| [[Thasian]] || ''[[Star Trek]]'' ||
|-
| Therbian (See [[Aaamazzarite]]) || ''[[Star Trek]]'' ||
|-
| [[Theron]]s || [[Dan Dare]] stories ||
|-
| [[Tholian]]s || ''[[Star Trek]]'' ||
|-
| [[Thraddash]] || ''[[Star Control]]'' ||
|-
| [[Thranx]] || [[Alan Dean Foster]]'s [[Humanx Commonwealth]] series ||
|-
| [[Thrint]] || [[Larry Niven]]'s [[Known Space]] ||
|-
| [[Tiberians]] || [[Buzz Aldrin]] and [[John Barnes (author)|John Barnes]]' ''[[Encounter With Tiber]]'' ||
|-
| Tilikanthua || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Time Lord|Time Lords of Gallifrey]] || ''[[Doctor Who]]'' || Humanoid
|-
| [[Titanians]] || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| [[Titanide]]s || [[John Varley (author)|John Varley]]'s [[Gaea-trilogy]] ||
|-
| [[T'Lani]] || ''[[Star Trek]]'' ||
|-
| [[Tleilaxu]] || ''[[Dune universe]]'' ||
|-
| [[Tnuctip]] || [[Larry Niven]]'s [[Known Space]] ||
|-
| [[Toclafane]] || [[Doctor Who]] ||
|-
| [[Tok'ra]] || ''[[Stargate SG-1]]'' ||
|-
| [[Tollan]] || ''[[Stargate SG-1]]'' ||
|-
| Toluen || ''[[Imperium Galactica II: Alliances]]'' ||
|-
| Torians || ''[[Galactic Civilizations]]'' ||
|-
| [[Trabe]] || ''[[Star Trek]]'' || Humanoid
|-
| [[List of Doctor Who monsters and aliens#Tractator|Tractators]] || ''[[Doctor Who]]'' ||
|-
| [[Traeki]] || [[David Brin]]'s [[Uplift Universe]] ||
|-
| [[Tralfamadorians]] || [[Kurt Vonnegut]]'s ''[[The Sirens of Titan]]'' and ''[[Slaughterhouse 5]]'' ||
|-
| [[Tran]] || [[Alan Dean Foster]]'s ''[[Icerigger]]'' ||
|-
| [[Transylvanians]] || ''[[Rocky Horror Picture Show]]'' ||
|-
| [[Energon|Transformers]] || [[Transformers]] ||
|-
| [[List of Star Wars races (P-T)#Trandoshan|Trandoshan]]s || ''[[Star Wars]]'' ||
|-
| [[Traskans]] || ''[[Farscape]]'' || Humanoid
|-
| [[Treecat]]s || [[David Weber]]'s ''Honorverse'' ||
|-
| [[Treens]] || [[Dan Dare]] stories ||
|-
| [[Tribble (Star Trek)|Tribbles]] || ''[[Star Trek]]'' || (compare with the earlier [[flatcat]]s from [[Robert A. Heinlein]]'s ''[[The Rolling Stones (novel)|The Rolling Stones]]'')
|-
| [[Triceraton]] || ''[[Teenage Mutant Ninja Turtles]]'' ||
|-
| [[Triscene]]s || ''[[X-COM: Terror from the Deep]]'' ||
|-
| Trilarians || ''[[Master of Orion II]]'' ||
|-
| [[Trill (Star Trek)|Trill]]s || ''[[Star Trek]]'' ||
|-
| [[Nicholas Fisk#Trillions|Trillions]] || [[Nicholas Fisk]] || small collective crystals
|-
| [[Trinocs]] || [[Larry Niven]]'s [[Known Space]] ||
|-
| [[Trom]]ites || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| [[Tsufurujin]] || ''[[Dragon Ball (franchise)|Dragon Ball]]'' ||
|-
| [[Tsung (Valérian)|Tsung]] || ''[[Valérian and Laureline]]'' ||
|-
| [[Tunnel Makers]] || ''[[Einstein's Bridge]]'' ||
|-
| [[Tusken Raider]]s || ''[[Star Wars]]'' || Humanoid
|-
| [[Turians]] || [[Mass Effect]]
|-
| [[Twi'lek]]s || ''[[Star Wars]]'' || Humanoid
|-
| Twinsunians || ''[[Little Big Adventure]]'' ||
|-
| [[Tyranid]]s || [[Warhammer 40,000]] ||
|-
| [[Tzenkethi]] || ''[[Star Trek]]'' ||
|-
| [[Umgah]] || ''[[Star Control]]'' ||
|-
| [[Unas (Stargate)|Unas]] || ''[[Stargate SG-1]]'' ||
|-
| [[Uncreated]] || [[Marvel Comics]] ||
|-
| [[Unggoy]] || ''[[Halo (series)|Halo]]'' ||
|-
| Ungooma || ''[[Ascendancy (computer game)|Ascendancy]]'' ||
|-
| Uniocs || [[Schlock Mercenary]] ||
|-
| [[Unity (Superman: The Animated Series)|Unity]] || ''[[Superman: The Animated Series]]'' ||
|-
| [[Kzer-Za|Ur-Quan Kzer-Za]] || ''[[Star Control]]'' ||
|-
| [[Kohr-Ah|Ur-Quan Kohr-Ah]] || ''[[Star Control]]'' ||
|-
| [[Utrom]] || ''[[Teenage Mutant Ninja Turtles]]'' ||
|-
| [[Uryuoms]] || ''[[El Goonish Shive]]'' ||
|-
| [[U'tani]] || ''[[Star Trek]]'' ||
|-
| [[Utwig]] || ''[[Star Control]]'' || Humanoid
|-
| [[Vaadwaur]] || ''[[Star Trek]]'' ||
|-
| [[Vademon]] || [[Digimon]] ||
|-
| Vanacancia || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Varga plant|Varga plant]]s || ''[[Doctor Who]]'' ||
|-
| Vardians || ''[[Tracker]]'' ||
|-
| [[Vardrag]] || ''[[Nexus: The Jupiter Incident]]'' ||
|-
| Vasudans || ''[[Descent: FreeSpace — The Great War]]'' || Humanoid
|-
| [[Vegetaliens]] || [[Tommy and PJ]] ||
|-
| [[Velantians]] || [[Lensman]] books ||
|-
| [[Venek]] || ''[[Farscape]]'' || Humanoid
|-
| [[Venom (comics)|Venom]] and [[Carnage (comics)|Carnage]] || [[Marvel Comics]] ||
|-
| [[List of Doctor Who monsters and aliens#Venom grub|Venom grub]]s || ''[[Doctor Who]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Vervoid|Vervoid]]s || ''[[Doctor Who]]'' ||
|-
| [[Vespid (Warhammer 40,000)|Vespids]] || ''[[Warhammer 40,000]]'' ||
|-
| Vhorwed || [[Schlock Mercenary]] ||
|-
| [[Vidiians]] || ''[[Star Trek]]'' ||
|-
| [[Vilani (Traveller)|Vilani]] || [[Traveller (rpg)|Traveller]] [[role-playing game|RPG]] ||
|-
| [[Viltrumites]] || [[Invincible (comic)|Invincible]] ||
|-
| [[Vinean]]s || [[Yoko Tsuno]] comic || Humanoids with blue skin
|-
| [[Visitors (V TV series)|Visitors]] || ''[[V (TV series)|V]]'' ||
|-
| [[Races and Species in the Hitchhiker's Guide to the Galaxy#Vogons|Vogons]] || ''[[The Hitchhiker's Guide to the Galaxy]]'' ||
|-
| [[Vok]] || ''[[Beast Wars]]'' ||
|-
| [[Vorc]] || ''[[Farscape]]'' || Humanoid
|-
| [[Vorcarian bloodtracker]] || ''[[Farscape]]'' || Humanoid
|-
| [[Vorlons]] || ''[[Babylon 5]]'' ||
|-
| [[Vorta]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Vortex life form]]s || ''[[Ecco the Dolphin]]'' ||
|-
| [[Vorticon]] || ''[[Commander Keen]]'' || Humanoid
|-
| [[Vortigaunt]] || [[Half-Life (video game)|Half-Life]] || Humanoid
|-
| [[List of Doctor Who monsters and aliens#Vortisaur|Vortisaur]]s || ''[[Doctor Who]]'' audio dramas ||
|-
| [[Voth]] || ''[[Star Trek]]'' ||
|-
| Vroarscans || ''[[Utopia (computer game)|Utopia]]'' ||
|-
| [[Vulcan (Star Trek)|Vulcans]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Omnitrix#Wildmutt|Vulpimancer]] || ''[[Ben 10]]'' ||
|-
| [[VUX]] || ''[[Star Control]]'' ||
|-
| Vyro-Ingo || ''[[Star Control 3]]'' ||
|-
| [[Wadi]] || ''[[Star Trek]]'' ||
|-
| [[Waldahudin]] || [[Robert J. Sawyer]]'s ''[[Starplex]]'' ||
|-
| [[Wanderers (Noon Universe)|Wanderers]] || [[Noon Universe]] ||
|-
| [[Wang's Carpets]] || [[Greg Egan]]'s [[Diaspora (novel)|Diaspora]] ||
|-
| [[The Watcher (comics)|The Watcher]] || [[Marvel Comics]] ||
|-
| [[Waterseekers]] || [[Red Planet]] ||
|-
| [[List of Doctor Who monsters and aliens#Weeping Angels|Weeping Angels]] || [[Doctor Who]] || Humanoid
|-
| [[Weevil (Torchwood)|Weevils]] || ''[[Torchwood]]'' || Humanoid
|-
| [[Whrloo]] || [[Larry Niven]]'s [[Known Space]] ||
|-
| [[Willis the Bouncer]] || [[Red Planet]] ||
|-
| [[Winath]]ians || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| [[List of Doctor Who monsters and aliens#Wirrn|Wirrn]] || ''[[Doctor Who]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Wolfweeds|Wolfweed]]s || ''[[Doctor Who]]'' ||
|-
| [[Wogneer]] || ''[[Star Trek]]'' ||
|-
| [[Wookiee]]s || ''[[Star Wars]]'' || Humanoid
|-
| [[Wraith (Stargate)|Wraith]] || ''[[Stargate Atlantis]]'' || Humanoid
|-
| [[W'rkncacnter]] || ''[[Marathon Trilogy]]'' ||
|-
| [[Xandarian]]s || [[Marvel Comics]] || Humanoid
|-
| [[Xanthu]]ans || [[DC Comics]]' [[Legion of Super-Heroes]] ||
|-
| [[Xarian]]s || ''[[Battlelords of the 23rd Century]]'' ||
|-
| [[Xarquid]]s || ''[[X-COM: Terror from the Deep]]'' ||
|-
| Xchagger || ''[[Star Control]]'' ||
|-
| [[Xel'Naga]] || ''[[StarCraft]]'' ||
|-
| [[Xenomorph (Alien)|Xenomorphs]] || ''[[Alien (movie)|Alien]]'' movies ||
|-
| [[Xenexian]] || ''[[Star Trek]]'' ||
|-
| [[Alien races from the Godzilla films#Xilians (X星人)|Xilians]] || ''[[Invasion of Astro-Monster]]'' and ''[[Godzilla: Final Wars]]'' ||
|-
| [[Xindi (Star Trek)|Xindi]] || ''[[Star Trek]]'' || Humanoid
|-
| [[Characters in Paper Mario: The Thousand-Year Door#X-Nauts|X-Nauts]] || ''[[Paper Mario: The Thousand-Year Door]]'' ||
|-
| [[Minor villains in Sonic the Hedgehog (comic series)#Xorda|Xorda]] || [[Archie Comics]]' [[Sonic the Hedgehog (comic series)|Sonic the Hedgehog]] comics ||
|-
| [[X Parasite]]s || ''[[Metroid Fusion]]'' ||
|-
| [[Xyrillian]] || ''[[Star Trek]]'' ||
|-
| Yag-Kosha || [[Robert E. Howard]]'s ''[[The Tower of the Elephant]]'' || humanoid elephant
|-
| [[Yanme'e]] || ''[[Halo (series)|Halo]]'' ||
|-
| Yautja || ''[[Predator (alien)|Predator]]'' ||
|-
| [[Yeerk]]s || [[K. A. Applegate]]'s ''[[Animorphs]]'' || slug-like parasitic
|-
| [[Yehat]] || ''[[Star Control]]'' ||
|-
| [[Yeti (Doctor Who)|Yeti]] || ''[[Doctor Who]]'' ||
|-
| [[Yilane]] || [[West of Eden]] series of [[Harry Harrison]] ||
|-
| [[Yip-Yips]] || [[Sesame Street]] ||
|-
| [[Yoda]] || [[Star Wars]] ||
|-
| [[Yolkians]] || [[Jimmy Neutron]] ||
|-
| Yomingans || [[Schlock Mercenary]] ||
|-
| Yor || ''[[Galactic Civilizations]]'' ||
|-
| Yorn || ''[[Star Control 3]]'' ||
|-
| [[Yridian]] || ''[[Star Trek]]'' ||
|-
| Yugopotamians || [[The Fairly Oddparents]] ||
|-
| Yuki Nagato || ''[[The Melancholy of Haruhi Suzumiya]] ||
|-
| [[Yuuzhan Vong]] || ''[[Star Wars]]'' || Humanoid
|-
| [[List of Star Wars races (U-Z)#Zabrak|Zabrak]] || ''[[Star Wars]]'' || Humanoid
|-
| [[Zakdorn]]s || ''[[Star Trek]]'' ||
|-
| [[Zaldan]]s || ''[[Star Trek]]'' ||
|-
| [[Zalkonian]]s || ''[[Star Trek]]'' ||
|-
| [[Zaphod|Zaphod Beeblebrox]] || ''[[The Hitchhiker's Guide to the Galaxy|The Hitchhikers Guide to the Galaxy]]'' ||
|-
| [[List of Doctor Who monsters and aliens#Zarbi|Zarbi]] || [[Doctor Who]] ||
|-
| [[Zenetan]] || ''[[Farscape]]'' || Humanoid
|-
| [[Zenn-Lavian]]s || [[Marvel Comics]] || Humanoid
|-
| [[Zen Rigeln]] || ''[[Battlelords of the 23rd Century]]'' || Humanoid
|-
| [[Zentradi]] || ''[[The Super Dimension Fortress Macross|Macross]]'', adapted as the [[Zentraedi]] in ''[[Robotech]]'' || Humanoid
|-
| [[Zen-Whoberis]] || [[Marvel Comics]] || Humanoid
|-
| [[Zerg (StarCraft)|Zerg]] || [[StarCraft]] ||
|-
| [[Zhodani]] || [[Traveller (rpg)|Traveller]] [[role-playing game|RPG]] ||
|-
| Zinoboppians || [[Melonpool]] ||
|-
| [[Zoq-Fot-Pik]] || ''[[Star Control]]'' ||
|-
| Zorgons || [[Sluggy Freelance]] ||
|-
| Zorgons || [[Zathura]] ||
|-
| [[Zygon]]s || ''[[Doctor Who]]'' || Humanoid
|}
==Works of fiction featuring unnamed alien races==
*[[John Carpenter]]'s ''[[The Thing]]''
*[[Arthur C. Clarke]]'s ''[[2001: A Space Odyssey (novel)|2001: A Space Odyssey]]'' (unseen designers of the Monoliths)
*[[Hal Clement]]'s ''Needle'' and ''Through the Eye of a Needle''
*[[Fritz Leiber]]'s ''[[The Wanderer (novel)|The Wanderer]]''
*[[Stanisław Lem]]'s ''[[The Invincible]]''
*[[John Lymington]]'s ''[[Night of the Big Heat]]''
*[[Satyajit Ray]]'s ''[[The Alien]]''
*[[Satyajit Ray]]'s ''[[The Alien|Banku Babu's Friend]]''
*[[Jagadananda Roy]]'s ''Shukra Bhraman'' (''Travels to Jupiter'')
*[[Carl Sagan]]'s ''[[Contact (novel)|Contact]]''
*[[Steven Spielberg]]'s ''[[Close Encounters of the Third Kind]]''
*[[Steven Spielberg]]'s ''[[E.T. the Extra-Terrestrial|E.T.]]''
*[[Steven Spielberg]]'s ''[[Taken]]''
*''[[The Adventures of Jimmy Neutron: Boy Genius]]''
*''[[Babylon 5: Thirdspace]]'' (telepaths)
*''[[The Body Snatchers]]'' (pod people) and its film adaptations
*''[[Cocoon (film)|Cocoon]]'' and ''[[Cocoon: The Return]]''
*''[[Independence Day (film)|Independence Day]]''
*''[[Super Mario Land]]'' and successing games (Tatanga's species)
*''[[ToHeart2]]'' ([[Lucy Maria Misora]]/Ruuko)
*''[[War of the Worlds (2005 film)|War of the Worlds]]''
*''[[Prey (video game)|Prey]]''
*''[[Signs (film)]]''
*''[[Star Wars]]''
*''[[Halo (series)|Halo]]''
==See also==
*[[List of films featuring extraterrestrials]]
*[[List of extraterrestrials in fiction by type]]
*[[Cat-like aliens]]
*[[Races and species in The Hitchhiker's Guide to the Galaxy]]
*[[List of Doctor Who monsters and aliens]]
*[[Index of fictional species]]
*[[List of fictional robots]]
*[[List of fictional planets]]
*[[List of species in fantasy fiction]]
*[[Alien races in the Stargate universe]]
*[[Xenobiology]]
*[[Cryptozoology]]
*[[List of Star Trek races]]
==References==
*[[Wayne Douglas Barlowe]], Ian Summers and Beth Meacham: ''Barlowe's Guide to Extraterrestrials''
*[[Stanley Schmidt]]: ''[[Aliens and Alien Societies]]'' (Writer's Digest)
*[[Jack Cohen (scientist)|Jack Cohen]] and [[Ian Stewart (mathematician)|Ian Stewart]]: ''[[Evolving the Alien: The Science of Extraterrestrial Life]]''
* [[Cliff Pickover]]. 2003 ''[[The Science of Aliens]]'' New York: Basic Books. ISBN 0-465-07315-8
[[Category:Fictional extraterrestrial species|List of extraterrestrials in fiction]]
[[Category:Lists of fictional species|Extraterrestrial]]