List of fictional extraterrestrial species and races: S

Name Source Type Saiyan Dragon Ball Z A naturally aggressive warrior race hailing from the planet Vegeta who are, purportedly, the strongest warriors in the fictional Dragon Ball universe. Most of the Saiyans were exterminated by galactic overlord Frieza after Goku was born. With only few known survivors, they are functionally extinct. With the exception of their monkey-like tails, all Saiyans have an outward appearance identical to humans but with a larger, muscular build. They are able to manipulate life energy and are able to sense said energy from other living beings Sakkra Master of Orion Salayan The Orville Sal-Kadeem Utopia Salarians Mass Effect Amphibian species with a relatively short lifespan. Processes stimuli quickly. Samaan Star Twinkle PreCure An alien race who are terminally dependent on a Mother AI.Star Twinkle PreCure 29 and 30 One of them, Lala Hagoromo, became the first alien to become a Pretty Cure. San 'Shyuum Halo Sandworm Dune universe Sangheili Halo Santeeians Bravest Warriors Santeeians worshipped Wankershim before being vaporized to become one with Wankershim. Sariens Space Quest Sarturians Utopia Sathar Star Frontiers Worm-like tentacled antagonists Sau-Bau Battlelords of the 23rd Century Scarrans Farscape Humanoid Schniarfeurs Valérian and Laureline Scorvians Farscape Humanoid Screwheads Invader Zim They were enslaved by the Irken Empire and currently the species works the Conveyor Belt Planet. Scrin Command & Conquer Scwozzworts Lunchbox and the Aliens Squid-like and non-humanoid Sdanli Harry Turtledove's Worldwar series Large, fierce reptilian predators native to Home. In the very ancient history of the Race, petitioners who appeared before emperors (Ssumaz dynasty or otherwise, as this was long before the planet's political unification even by the standards of the Race's history) and did not show the proper respect were thrown to sdanli as a form of capital punishment. The punishment was later changed to a nonlethal, symbolic one: courtiers in sdanli-skin masks surround the disgraced individuals and mock them. Sebaceans Farscape Humanoid. Genetically engineered offshoot of humans, harvested from Earth 27,000 years ago. Lower heat resistance than humans, but double the average life expectancy Second through Last Men Olaf Stapledon's Last and First Men Sectoids X-COM: UFO Defense Sectoids are the first race encountered by the X-COM. They resemble the typical Grey alien, but are quite short. However, they have great psychic powers, capable of linking their minds and inducing panic or even controlling their enemies.SegmentasapiensBen 10Gorilla-like species with bodies made of building blocks similar to Lego blocks. Seekers Advent Rising Selay Star Trek Reptilian species in episode "Lonely Among Us" Selkath Star Wars Humanoid Seraphim Supreme Commander Séroni Space Trilogy Humanoid Sevod Hary Turtledove's Worldwar series An avian species with reptilian characteristics that flew in the sky of Tau Ceti. Like many creatures found in Home, they had scales and eye-turrets; unlike birds, sevod and related species had featherless wings. The Sevod was renowned for making musical sounds in the evening and are related to squazeffi. Shadoks Les Shadoks Shadows Babylon 5 Arachnid, capable of phase-shifting to turn invisible Shalka Doctor Who Shafter Adventure Time: Distant Lands Sharrh C. J. Cherryh's Alliance-Union universe Sheeda Grant Morrison's Seven soldiers of Victory megaseries Sheliak Star Trek Shevar Ascendancy Sheyangs Farscape Shi'ar Marvel Comics Humanoid Shinari Imperium Galactica II: Alliances Shingouz Valérian comics Shiori Goshiki A Galaxy Next Door Shivans Descent: FreeSpace – The Great War Shizuka Minamoto (Parallel Planet on the contrary) Doraemon Humanoid who is the gender-swapped version of Shizuka Minamoto Shofixti Star Control Shoggoths H. P. Lovecraft Sholans Lisanne Norman - Sholan Alliance Feline humanoidShongairiDavid Weber's Out of the Dark Shonunin C. J. Cherryh's Alliance-Union universe Shroobs Mario & Luigi: Partners in Time Evil race of Toads who invaded the Mushroom Kingdom of the past. Some of them appears in Bowser's Castle in Mario & Luigi: Bowser's Inside Story. Silacoids X-COM: UFO Defense Silfen Peter F. Hamilton's Pandora's Star Humanoid Silicoids Master of Orion Sirians Serious Sam: The First Encounter Skaarj Unreal series Skedar Perfect Dark Skinnies Starship Troopers Humanoid Skolarians Zak McKracken and the Alien Mindbenders Skroderiders Vernor Vinge's A Fire Upon the Deep Sessile, plant-like beings mounted in personal mechanical vehicles ("skrodes") Skrulls Marvel Comics Slaughtering Rat People Invader Zim Physiologically similar to giant rats, the Slaughtering Rat People inhabited the planet Blorch before it was conquered by Invader Skoodge. Blorch was converted into a parking structure planet. Slavers (see Thrint) Larry Niven's Known Space Slitheen Doctor Who Slylandro Star Control Snakemen X-COM: UFO Defense Snarks Marvel Comics Snotlings Warhammer 40,000 Humanoid Snovemdomas Ascendancy SoI-002 SCP Foundation Species of Interest #002 is a large, conical, arthropodal species with four legs and six arms, locomoting with self-assistance via telekinesis. Most if not all members of the species are Ortothans; practitioners of an ancient intergalactic religion. SCP-2651-B, a group of SoI-002, died while attempting to colonize the Earth during the late Neoproterozoic Era. In sandbox notes, the species is unofficially labeled as the Aalkjad. Solarians Nine Sols Solaris Stanisław Lem's Solaris Solomon Family 3rd Rock from the Sun Solon Haegemonia: Legions of Iron Solrock Pokémon A rock-like Pokémon reminiscent of a cartoon sun. Son'a Star Trek Sonorosians Ben 10 Sound-based aliens from planet Sonorosia who live in containment suits made of silicon, they are capable of self replication and unleashing powerful sonic screams. Sontarans Doctor Who Stocky humanoids known for their ruthlessness from planet Sontar. Soomanii Utopia Sorn C. S. Lewis' Space Trilogy Soro David Brin's Uplift Universe Sosiqui The Journeyman Project 3: Legacy of Time Southern Aliens Bravest Warriors They have thick southern accents. Space Angel Princess Adventure Time Space Chickens Bravest Warriors Physiologically similar to pigeons Space Chickens Courage the Cowardly Dog Space Moth Adventure Time Space Pirates Metroid series Spathi Star Control Species Species and its sequels Bipedal humanoid female aliens, and quadrupedal male aliens. Species 8472 Star Trek S'pht Marathon Trilogy Spibbley Invader Zim Spiridons Doctor Who Spirits Stargate SG-1 Humanoid Splixson Ben 10 Small, humanoid aliens from planet Hathor, Splixsons can duplicate themselves infinitely, and are generally peaceful farmers and painters on their home planet. Sprixie Super Mario 3D World Squirps Super Paper Mario Squiz-Quijy Utopia Ssora Renegade Legion Reptilian Ssvapi Harry Turtledove's Worldwar series A burrowing animal native to Rabotev 2. Throughout the Race's empire, they are notorious for showing extreme aggression and stubbornness in fighting to defend their burrow networks against predators and other intruders. The American defense of Chicago from 1942 to 1944 was compared to the territorial defensiveness of such animals by the Conquest Fleet that flew against Tosev 3. Starmen EarthBound Strogg Quake II and Quake 4 Stsho C. J. Cherryh's Chanur novels Stu Pixar's Lifted Sugarbellies Bravest Warriors They speak in high-pitched voices. Suliban Star Trek Humanoid Sun-Dog Terry Pratchett's The Dark Side of the Sun Large sentient beings that live in the vacuum of space. Capable of traveling through hyperspace. Any object they engulf will travel through hyperspace with them. The Sub-Dog species operate a successful business transporting spaceships across vast distances for other races in exchange for currency. Suneo Honekawa (Parallel Planet on the contrary) Doraemon Humanoid who is the gender-swapped version of Suneo Honekawa Sungs 2300 AD Supox Star Control Serrakin Stargate SG-1 Humanoid Swaparamans Ascendancy Sycorax Doctor Who Humanoid Sye-Men Battlelords of the 23rd Century Sykarians Farscape HumanoidSymbioteMarvel ComicsInorganic, amorphous extraterrestrial symbiotes appearing in American comic books published by Marvel Comics. The Klyntar bond with their hosts, creating a symbiotic bond through which a single entity is created. They also are able to alter their hosts personalities, by influencing their darkest desires and wants, along with amplifying their physical and emotional traits and personality. Syreen Star Control Humanoid

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