Name Source Type Cabal Destiny franchiseLarge, rhinoceros-like humanoids from the planet of Torobatl. Their politics and society are similar to that of Ancient Rome . Caged dude Adventure Time: Fionna and Cake Caitian Star Trek: The Animated Series Feline humanoid Calamarain Star Wars Caleban Frank Herbert 's Whipping Star invisible telepathic beings who are actually the minds of stars Calcinite X-COM: Terror from the Deep Callineans Star Fleet Humanoid Calvin Life Cephalopod-like Caliban C. J. Cherryh 's Alliance-Union universe Campbellians Chōdenji Robo Combattler V Canaria Adventure Time: Fionna and Cake Capelons Ascendancy Conductoid Ben 10 Black-skinned aliens from planet Teslavorr, Conductoids are cycloptic humanoids with plugs on their fingers, prehensile tail, and antenna on their heads. They have the ability to absorb energy and redirect it as electrical energy. Cascan Ben 10 Hailing from planet Cascareau in the Andromeda Galaxy, these aliens are very similar to Orishans, being armored humanoids able to manipulate water. Cardassian Star Trek Reptilian Humanoid Carggites DC Comics A humanoid species from the planet Cargg who can split into three bodies at will. The Legion of Super-Heroes member Luornu Durgo is a Carggite. Carrionites Doctor Who Humanoid Cat Red Dwarf Felis Sapiens. Evolved over the course of three million years in deep space, from a domesticated housecat. Catbug Bravest Warriors A combination part cat and part ladybug, Catbug simultaneously exists in two dimensions; reality and the See-Through Zone. Cathar Star Wars Cat-like humanoid Catkind Doctor Who Feline Humanoid. Cat People The Garfield Show Feline humanoid. Cat People Marvel Comics Feline humanoid Catalyte Utopia Catteni Anne McCaffrey 's Catteni Series Cavalier Tommy & PJ Cazare Ratchet & Clank Celareon Conquest: Frontier Wars Celatid X-COM: UFO Defense Celestials Marvel Comics Celestialsapien Ben 10 Horned humanoids with a body similar to that of a starry night sky from the Forge of Creation, they can warp space, time and reality. However, they are limited by their psyche: their minds are divided into separate personalities that need to agree to do even simple tasks, causing them to remain motionless for long periods of time. Centauri Babylon 5 Humanoid Centrans Christopher Anvil 's Pandora's Planet stories Feline humanoids Cerebrocrustacean Ben 10 Crab-like aliens from the planet Encephalonus IV. They are extremely intelligent and can generate electricity. Ceti eel Star Trek II: The Wrath of Khan bug-like brain parasites from Ceti Alpha V Chaethe Kathy Tyers 's One Mind's Eye Chalnoth Star Trek Chamachies Ascendancy Changeling Star Trek Chaos Independence War Charrids Farscape Humanoid Chasch Jack Vance 's Planet of Adventure Series Big headed humanoids divided in subspecies. Chatilian Battlelords of the 23rd Century Humanoid Cheblons Imperium Galactica II: Alliances Cheela Dragon's Egg inhabitants of neutron star Chelonian [ broken anchor ] Doctor Who novels Chenjesu Star Control Crystalline life-form Cherubs Homestuck Cherubs are characterized by their green exoskeleton. Chevanno Utopia Chevin Star Wars Amebelodontidae alien race Chi C. J. Cherryh 's Chanur novels Chigs Space: Above and Beyond Chimera Resistance: Fall of Man Reptilian Hybrids between virus and host Chimera Sui Generis Ben 10 Green-skinned cephalopodic humanoids from the planet Vilgaxia. Chinger Bill, the Galactic Hero Chiss Star Wars Blue-skinned red-eyed humanoids Chmmr Star Control Cho-choi Jack McDevitt 's Infinity Beach Chronovore Doctor Who Universe devourers Chozo Metroid Bird-like species. Extremely technologically advanced and spread out across the galaxy. Chronian Ben 10: Race Against Time A humanoid species who can manipulate time. Chronomyst Ascendancy Chryssalid X-COM: UFO Defense Cinnrusskin 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 Furry, bird-like beings trapped in "Spacetime Six", a parallel universe. Coeurl The Voyage of the Space Beagle by A. E. van Vogt Similar to a big cat; prehensile tentacles sprouting from shoulders. Feeds on potassium and/or organic phosphorus. Cognocenti Star Trek Colatas Farscape Humanoid Cole Adventure Time: Distant Lands Cole Tracker Collectors Mass Effect 2 Insect-like form of the Protheans modified to serve the Reapers Colonists The X-Files Colour out of space H. P. Lovecraft Coluans DC Comics A humanoid species with green skin and vast intelligence. The supervillain Brainiac and his family are Coluans. Combine Half-Life 2 An alien empire. Many of the "Combine" seen in the game are humans who have been assimilated or collaborate as brutal police troopers. Coneheads Saturday Night Live Humanoid with conical heads Control Brains Invader Zim The Control Brains assign the Irken race with roles and are the unspoken leaders of the Irken Empire. Coreeshi Farscape Humanoid Coridanite Star Trek Humanoid Corporal Giroro Sgt. Frog Corvallen Star Trek Reptilian Humanoid Covenant Halo Collective of alien species who are allied with each other, Composed of Grunts, Brutes, Elites, Hunters, Jackals, and Prophets. Religious Hierarchy with intent to destroy the Human Race. Crystals Raiden Hi-tech aliens that has control over red crystals with unlimited powers, which are used to power up their weapons and equipment. Cragmite Ratchet & Clank Creators Nexus: The Jupiter Incident Crescendolls Interstella 5555 An alien band, inspired by the Daft Punk song of the same name. Crites Critters filmscarnivorous hairballs Cryons Doctor Who A crystalline humanoid race from planet Telos, they cannot survive temperatures above the freezing point, boiling and steaming in said temperatures. Ctarl-Ctarl Outlaw Star Cthulhu Cthulhu Mythos Cuber Adventure Time Cybermen Doctor Who Marauding cybernetic life-forms. Originally an alien race driven to conversion by catastrophic climate change, more recently reimagined as assimilated humans. Cybertronians Transformers Large robots from planet Cybertron able to change their shape at will into other mechanical constructs, most commonly varying types of vehicles like planes and trucks. Known more commonly as Transformers. Cybyota Orion's Arm Cyclons Metroid series Cylons Battlestar Galactica Sentient robots. Remnants of a civilization of reptilian aliens (also known as Cylons) in the original series, but created by humans in the remake series. Both mechanical and biological flesh-and-blood versions co-exist, with the biological versions in charge. Cynoid Master of Orion III Cyrollan The Journeyman Project