Species

AcamariansClan-divided people of Acamar III TNG AenarA blind, telepathic Andorian subspecies ENT · Season 4 AkaaliPre-industrial people exploited by offworld miners ENT AkritiriansDelta Quadrant people with a brutal prison VOY AldeansReclusive people of the hidden world Aldea TNG AllasomorphsShapeshifters of Daled IV TNG Anaphasic lifeformsEnergy beings tied to a host TNG AndoriansBlue-skinned warriors ENT AngosiansPeaceful people who built super soldiers TNG AnkariDelta Quadrant people who summon spirits of fortune VOY AnnariDelta Quadrant power at war with the Kraylor VOY AntaransOld enemies of the Denobulans ENT AntedeansFish-like delegates from Antede III TNG AnticansCanine people at war with the Selay TNG AquansWater-breathing people of Argo TAS ArcadiansFederation member species with large round heads TOS ArgrathiPeople who punish convicts with false memories DS9 ArkoniansTerritorial rivals of the Vulcans ENT ArmusMalevolent being of Vagra II TNG AugmentsGenetically engineered humans TOS AxanarFirst aliens befriended by the NX-01 crew ENT B'omarDelta Quadrant people who guard their borders VOY Ba'kuPeaceful people of the Briar Patch TNG Ba'nethReclusive, permanently cloaked species VOY Ba'ulThe other species of Kaminar DIS · S2E06 BajoransSpiritual people of Bajor DS9 BandiHosts of Farpoint Station TNG BaneansDelta Quadrant people who sentence by memory VOY BarkoniansPre-industrial villagers of Barkon IV TNG BarzansPeople of resource-poor Barzan II TNG BenzitesMist-breathing Federation people TNG Beta Renna cloud entityEnergy being from an interstellar cloud TNG Beta XII-A entityEnergy being that fed on hatred TOS BetazoidsTelepathic people TNG Bliss creatureTelepathic spaceborne predator VOY Bluegill parasitesParasites that infiltrated Starfleet TNG BoliansBlue-skinned people TNG BoraalansPre-warp villagers saved by Nikolai Rozhenko TNG BothaTelepathic aliens who cast hallucinations VOY BreenArmoured species DS9 BrekkiansPlanet of drug suppliers TNG BrenariTelepathic refugees in Devore space VOY BrikarThe rocky species of Rok-Tahk PRO BrioriAliens who abducted humans in 1937 VOY BrunaliFarming people menaced by the Borg VOY BynarsComputer-linked humanoids TNG CaatatiRefugees of Borg assimilation VOY CairnTelepathic people learning to speak TNG CaitiansFeline humanoid species TAS CalamarainGaseous beings who pursued Q TNG CapellansProud warrior tribes of Capella IV TOS Cardassian volesRodent pests of Cardassian stations DS9 CardassiansMilitaristic people of Cardassia TNG CatullansPeople whose ambassador's son joined the space hippies TOS Ceti eelsParasitic creatures of Ceti Alpha V TOS ChalnothAggressive anarchists from Chalnoth TNG ChameloidsShapeshifters once thought mythical TOS CheroniansTwo-toned people who destroyed themselves TOS Coalescent organismLifeform that absorbs and mimics others TNG CoridanitesPeople of the dilithium-rich world Coridan ENT CravicWarring robots that destroyed their makers VOY Crystalline EntityCrystalline space-dwelling entity TNG CytheriansExplorers at the galactic core who bring others to meet them TNG D'ArsayVanished civilization preserved in a comet archive TNG Dal'RokEnergy creature summoned by a Bajoran village DS9 Dar-ShaNew species of the Starfleet Academy era SFA DeltansFederation species from Delta IV, known for their sensuality TOS DenobulansFriendly people ENT DevidiansTime-travelling feeders on human neural energy TNG DevoreDelta Quadrant empire that outlawed telepathy VOY Dikironium cloud creatureGaseous predator that fed on blood TOS DinaaliDelta Quadrant people with rationed health care VOY Dol'drmInsectoid people of the lost fifth planet SNW DosiGamma Quadrant traders who first named the Dominion DS9 DouwdImmortal energy beings of vast power TNG DrayansReclusive people who age in reverse VOY DremansPre-warp people saved by a child's radio call TNG DrookmaniOpportunistic scavengers of the 24th century LD EdoCarefree people with deadly random laws TNG EdosiansThree-armed species of Lieutenant Arex TAS EkosiansPlanet remade on a historian's misguided model TOS El-AuriansLong-lived listeners TNG ElasiansProud warrior people of Elas TOS ElaysiansNatives of a low-gravity world DS9 EminiansFought a computer-simulated war for five centuries TOS EnaransTelepathic people hiding a buried genocide VOY EnnisWarring factions doomed to endless resurrection DS9 EnoliansDelta-era authorities behind the Canamar transport ENT EskaHunters who stalk the creatures of a rogue planet ENT ExcalbiansRock beings fascinated by good and evil TOS ExocompsTool robots that crossed into sentience TNG EymorgsWomen of Sigma Draconis VI who stole Spock's brain TOS FabriniBuilders of the asteroid ark Yonada TOS FerengiProfit-driven traders TNG FlaxiansSpecies of the assassin Retaya DS9 GideonitesAgeless people crushed by overpopulation TOS GlommerKlingon-bred tribble predator TAS GomtuuLiving starship, the last of its kind TNG GormaganderSpace-dwelling whale-like creature DIS GornReptilian people TOS GrazeritesGentle horned people of a Federation president DS9 HaakoniansConquerors of Talax VOY HaliiansPartial telepaths who use a canar TNG HalkansPacifists who refuse to arm anyone TOS HazariDelta Quadrant bounty hunters VOY HekaransScientists who proved warp drive harms subspace TNG HierarchyBureaucratic spies of the Delta Quadrant VOY HirogenHunter species VOY HortaSilicon-based life TOS HumansPeople of Earth TOS HupyriansDevoted servants of the Grand Nagus DS9 Hur'qAncient invaders who stole the Sword of Kahless DS9 HusnockAggressive species wiped out in an instant TNG IconiansVanished ancient empire famed for its gateways TNG IlariDelta Quadrant people ruled by autarchs VOY IllyriansGenetically altered humans SNW Interphasic organismsInvisible parasites that fed on the crew TNG IotiansImitative humanoids of Sigma Iotia II TOS IyaaransAmbassador species who studied humanoid emotions TNG J'naiiAndrogynous species that rejects gender TNG JahSeppInhabitants of the mycelial network DIS JaradaReclusive species demanding exact protocol TNG Jem'HadarDominion soldiers DS9 KaelonsHumanoids who end their lives at sixty TNG KalandansVanished builders of an artificial outpost world TOS KaremmaGamma Quadrant traders within the Dominion DS9 KazonDelta Quadrant sects VOY KellerunFormer enemies of the T'Lani DS9 KelpiensPrey species DIS KelvansAndromeda invaders who borrowed human form TOS KerkhoviansHigher-dimensional beings bound by strict laws SNW Kes and PryttRival peoples sharing one planet TNG KhioniansShapeshifting species with a vacuum-proof true form SFA KlingonsWarrior culture of Qo'noS TOS KobaliDelta Quadrant people who reproduce by reviving the dead VOY KobliadDying species dependent on deuridium DS9 KomarNoncorporeal beings of a dark matter nebula VOY KraylorDelta Quadrant people at war with the Annari VOY KreetassansFormal people offended by public eating ENT KrenimDelta Quadrant empire that wielded temporal weapons VOY KriosiansHumanoid people of the world Krios TNG KtariansHumanoids who plotted with an addictive game TNG KwejianEmpathic stewards of a lost world DIS KyriansDelta Quadrant people who rewrote Voyager's history VOY KzintiFeline warriors TAS LactransGiant telepaths who keep a zoo TAS LanthanitesLong-lived species that has lived secretly on Earth SNW LegaransReclusive species courted by Sarek TNG LetheansTelepaths capable of crippling attacks DS9 LigoniansHonor-bound people of Ligon II TNG LokirrimDelta Quadrant people hostile to photonic life VOY LuriansThe species of Morn, the silent regular at Quark's bar DS9 LysiansAlliance tricked into war with the Enterprise TNG M'hanitLiving comet worshipped by the Shepherds SNW M-113 creatureSalt-craving shapeshifter TOS MacrovirusesGiant airborne viruses VOY MajalansPeople of Majalis whose paradise depends on a child SNW MalcoriansPre-warp civilization of Malcor III TNG MalonDelta Quadrant industrial people who dump toxic waste VOY MaluriansVictims of Nomad and illegal miners ENT MariTelepaths who outlawed violent thought VOY MazaritesPeople of Mazar whose government hid corruption ENT MedusansNoncorporeal beings whose appearance drives humanoids mad TOS · Season 3 MegansMagic users from the galactic centre TAS MelkotiansPowerful telepaths who staged the O.K. Corral TOS Mellanoid slime wormsNear-indestructible gelatinous creatures PRO MenkLess advanced people sharing a world with the Valakians ENT MentharsAncient enemies of the Promellians TNG MetronsHighly advanced beings TOS MicrobrainsCrystalline life forms of Velara III TNG MinosiansArms dealers destroyed by their own weapons TNG MintakansProto-Vulcan people of Mintaka III TNG MiradornTwins who form one being DS9 MizariansPassive people often conquered TNG MokraAuthoritarian rulers of the Alsauri VOY MoneansInhabitants of a planet made of water VOY MoopsyCute predator that drinks bones LD MugatoVenomous horned ape of Neural TOS NaceneThe Caretaker's species, powerful entities who tend the Ocampa VOY NagilumEntity of a starless void TNG NanitesMicroscopic machines that became a sentient collective TNG NapeansHumanoids with natural empathic abilities TNG NausicaansAggressive humanoids TNG Neural parasitesColonizing parasitic organisms TOS NezuDelta Quadrant people whose world was bombarded by asteroids VOY Nol-EnnisEndlessly warring prisoners of a Gamma Quadrant moon DS9 NomadEarth probe turned sentient machine TOS Nucleogenic lifeformsBeings from another realm of space VOY NumiriDelta Quadrant power at war with the Baneans VOY NygeansDelta Quadrant people whose justice lets victims' families decide VOY NyriansDelta Quadrant people who steal ships by displacing their crews VOY OcampaShort-lived telepaths VOY Old OnesVanished builders of the androids of Exo III TOS OrganiansPowerful non-corporeal beings TOS OrionsSpace pirates TOS OrnaransPeople kept dependent on a drug from their neighbours TNG OsaariansPirates of the Delphic Expanse ENT Pah-wraithsExiled wormhole entities, enemies of the Prophets DS9 PahvansNoncorporeal beings of the planet Pahvo DIS PakledsSimple-minded technologists TNG PandroniansColony creatures able to split into separate parts TAS ParadansGamma Quadrant people who made a replicant of Miles O'Brien DS9 PaxansReclusive beings who erased the Enterprise's memory TNG PhylosiansPlant-based people who cloned a giant Spock TAS Planet-eating cloudImmense cloud lifeform TAS PlatoniansPsychokinetic people who modelled their society on Ancient Greece TOS PralorRobots that outlived their makers in an endless war VOY PreserversAncient people who saved endangered cultures TOS ProgenitorsThe ancient humanoids who seeded life across the galaxy TNG PromelliansAncient people who lost a war to a deadly trap TNG ProphetsTimeless beings of the Bajoran wormhole DS9 ProvidersDisembodied brains who wager on gladiators TOS Q ContinuumOmnipotent beings TNG QomarMathematical people dazzled by the Doctor's singing VOY QuarrenDelta Quadrant world that used abducted workers VOY RakhariGamma Quadrant people under an oppressive regime DS9 RamuransPeople who cannot be remembered by outsiders VOY RedjacNoncorporeal killer who fed on fear TOS RemansSubjugated people of Remus TNG RisiansHosts of the pleasure planet Risa TNG RomulansSecretive star empire TOS RutiansPeople of Rutia IV divided by separatist violence TNG SakariDelta Quadrant colonists who fled into hiding VOY Saltah'naExtinct telepaths whose memories possessed the DS9 crew DS9 Sargon's peopleAncient minds preserved in spheres TOS SatarransInfiltrators who erased the Enterprise crew's memories TNG SauriansReptilian Federation species known for their brandy TOS ScalosiansHyper-accelerated people of Scalos TOS SehlatsLarge Vulcan animals TOS SelayReptilian rivals of the Anticans TNG Sha Ka Ree entityBeing imprisoned at the galaxy's center TOS SheliakReclusive non-humanoid species bound by a legalistic treaty TNG SikariansHedonistic hosts with a space-folding device VOY SkagaransAliens who abducted humans to the Delphic Expanse ENT SkorrAvian people inspired by a revered prophet TAS SkrreeaRefugee farmers seeking their promised land DS9 SolanaeSubspace beings who abducted Enterprise crew members TNG Son'aExiles of the Ba'ku who allied with Starfleet TNG Space amoebaGiant single-celled space organism TOS Spaceborne jellyfishShapeshifting spaceborne lifeforms TNG Species 10-CExtragalactic beings behind the Dark Matter Anomaly DIS Species 8472Fluidic Space invaders VOY Sphere BuildersTransdimensional beings behind the Delphic Expanse ENT SrivaniHidden alien scientists who experimented on Voyager VOY SulibanGenetically altered people ENT SynthsSynthetic lifeforms descended from the work of Data PIC T'LaniGamma Quadrant peacemakers DS9 Tak TakGesture-speaking traders of the Delta Quadrant VOY TakaransResilient humanoids without distinct organs TNG TalariansPatriarchal warrior people TNG TalaxiansDelta Quadrant people VOY TalosiansTelepathic illusionists TOS TamariansMetaphor speakers TNG TandaransWardens of the Suliban internment camps ENT TardigradesGiant creatures linked to the mycelial network DIS TarelliansPlague-stricken wanderers TNG TaresiansDelta Quadrant people of Taresia VOY TargsBoar-like Klingon animals TNG Taurus II creaturesGiant creatures of Taurus II TOS TeenaxiSmall but aggressive species of the Kelvin timeline TOS TellaritesArgumentative people ENT TeplansVictims of the Dominion's blight DS9 ThasiansNoncorporeal beings of Thasus TOS The BorgCybernetic collective TNG The CompanionEnergy being of Gamma Canaris N TOS The FoundersChangelings of the Gamma Quadrant DS9 The GorganMalevolent entity of Triacus TOS TholiansCrystalline territorial species TOS TiburoniansHumanoids of the planet Tiburon TOS ToskEngineered prey of the Hunters DS9 TrabeFormer masters of the Kazon VOY TravelersBeings who travel through thought TNG TriannonReligious zealots of the Delphic Expanse ENT TribblesFast-breeding creatures TOS TrillJoined species of the Alpha Quadrant DS9 TroyiansRefined people of Troyius TOS TureiGuardians of underspace VOY Two-dimensional creaturesLifeforms with no depth TNG UlliansTelepathic historians TNG Ux-MalDisembodied convicts of the Ux-Mal system TNG VaadwaurAncient Delta Quadrant conquerors woken from stasis VOY ValakiansSpacefaring people dying of a genetic disease ENT VarroIsolationist travellers on a generational ship VOY VaskansRival people of the Kyrians VOY Vau N'AkatThe people of Solum, the Diviner's world PRO VendoriansShapeshifters of the planet Vendor TAS VentaxiansPeaceful people of Ventax II TNG VezdaAncient possessing entities SNW VhnoriBelievers in the Next Emanation VOY ViansAdvanced experimenters of the Minara system TOS VidiiansOrgan harvesters VOY VissiansSpecies with three sexes ENT VorgonsTime-travelling seekers from the 27th century TNG VoriSoldiers at war with the Kradin VOY VortaDominion diplomats DS9 VothDelta Quadrant saurians descended from Earth's dinosaurs VOY VulcansLogical people of Vulcan TOS WadiGame-loving visitors from the Gamma Quadrant DS9 Whale ProbeAlien probe seeking humpback whales TOS XaheanPo's people, from the planet Xahea DIS XindiHumanoid coalition ENT XyrilliansReptilian engineers with holographic technology ENT YaderansDisplaced people of Yadera Prime DS9 YridiansInformation brokers TNG ZahlVictims of the Krenim time ship VOY ZakdornMaster tacticians TNG ZaldansBlunt humanoids who despise courtesy TNG ZalkoniansHumanoids of the planet Zalkon TNG ZeonsPeaceful people of the M43 Alpha system TOS ZetariansDisembodied survivors of Zetar TOS ZibaliansHumanoid traders TNG