S List of Doctor Who universe creatures and aliens (Q–Z)

1 s

1.1 sand beast
1.2 saturnyn
1.3 savage
1.4 scarecrow
1.5 screamer
1.6 sea devil
1.7 seaweed creature
1.8 seed pod
1.9 sensorite
1.10 sex gas
1.11 shadow
1.12 shakri
1.13 shalka
1.14 shambonie
1.15 shansheeth
1.16 shrivenzale
1.17 simon
1.18 silence
1.19 silurian
1.20 siren
1.21 sirian
1.22 sisterhood of karn
1.23 skarasen
1.24 skonnan
1.25 skullion
1.26 sky fish
1.27 slitheen
1.28 slyther
1.29 solonian
1.30 sontarans
1.31 spiridon
1.32 star whale
1.33 stigorax
1.34 swampie
1.35 swarm
1.36 swarm (virus)
1.37 sycorax

s
sand beast

saturnyn

saturnyn vampiric, lobster-like aliens battled eleventh doctor in 16th-century venice in vampires of venice . appearance quite fear-inducing due many sharp protrusions , fangs. able breathe underwater , had vampire-like qualities such vulnerability sunlight, no reflections , thirst human blood. however, these explainable; fish space , used living in dark depths; s mind cannot deal conflicting information of perception filter , saturnyn s true reflection; rosanna , francesco drank blood of girls attending school replace own. leader, signora rosanna calvierri used perception filter appear human woman, started school girls; guise seeking victims transformed mates francesco s brothers. planned flood venice in attempt continue civilization since own planet saturnyne destroyed cracks in universe. when doctor foiled plan, rosanna committed suicide allowing brood devour her. however, when doctor rewrote time in big bang preventing cracks existence, highly saturnyne not destroyed cracks , calvierri family did not end.

the doctor, @ least in eleventh incarnation, considered adventure battling saturnyens memorable. in man goes war, said adventures running about, sexy, fish vampires, , blowing stuff , , asked melody pond if amy told vampires in venice during let s kill hitler.

savage

scarecrow

straw-filled foot soldiers created son of mine, using molecular fringe animation. relentless , untiring, rudimentary intelligence. after being cut down machine-gun fire, reanimated. in perfect sense of irony, son of mine frozen in time , dressed scarecrow, watch on england s fields.

another type of scarecrow came alive set appear in unmade movie doctor meets scratchman.

screamer

sea devil

sea devils turtle-like humanoids lived in earth s oceans millions of years before humans evolved. believed small planet crash earth, instead became earth s moon. silurians, went hibernation , wanted take planet humans when awoke.

seaweed creature

a creature served pet of sorts, brute force, sea devils , silurians. fifth doctor vanquished using ultraviolet light overload optic nerves.

seed pod

sensorite

sex gas

an unnamed gaseous alien parasite comes earth feed on orgasmic energy in day 1 , claiming there s no other energy in universe it; s possible orgasmic energy drug gas, , s addicted. composed of vorax , ceranium gases, earth s atmosphere poisonous alien, needs take human host survive prolonged periods; interestingly, doesn t show on cameras. vies control host, causing physiological changes cause host s internal organs explode.

the alien makes host secrete blend of ultra-powerful pheromones cause tremendous sexual attraction in around purposes of feeding; stronger wills might able resist pheromones. coupling host fatal, causing host s partner disintegrate pile of dust @ climax , allowing alien absorb energy orgasm. appeared know human biology (or @ least enough), knowing needed opposite gender in order energy. tricked out of host , left in portable energy prison until expired being poisoned earth s air.

the bbc torchwood website lists sex gas . producer russell t davies, in documentary series torchwood declassified, refers sex monster .

this creature served way of showing torchwood s stories go places doctor s children-friendly stories not.

the shadow

a member of unknown race served black guardian. face blank, except vague impressions of shape of skull; wore seemed dark ceremonial robes.

shakri

the shakri species spoken of in gallifreyan myths, said pest controllers of universe ; amy pond found strange choice bed-time story . attack species believe pose threat universe, hence why tried eliminating humanity in 21st century, years before colonise space in future. hologram of wrinkled humanoid in black robe seen on shakri ship; however, not known if shakri like. shakri consider 7 important number, given used amount of portals, ships, cube activation time, , countdown. follow known tally ; doctor has implied shakri compare species failures , successes decide whether or not subjected pest control .

shalka

the shalka appear serpentine alien race made of living rock , magma, bioplasmic entities, living plasma, physical appearance merely crust concealing true forms. breathe volcanic air , prefer high temperatures, being comfortable underground lava meets metamorphic rock. communicate through high-pitched screaming, can use variety of effects, tunnelling through rock or mentally controlling other life forms. use sound part of technology.

in alternate timeline, shalka arrived on earth via meteorite, landing near mount ruapehu, new zealand, subsequently establishing beachhead planned invasion of earth beneath lancashire town of lannet. created stable wormhole landing invasion force, converted black hole dispose of enemies, tried doctor.

as claimed have done billions of planets before, intended implant shalka larvae key segments of population, mind controlling them emitting scream destroy ozone layer. in way, shalka intended raise surface temperature of planet point human race perish shalka thrive. shalka live beneath surface, rest of universe believing earth s inhabitants had died of self-inflicted ecological damage. doctor defeated plans of british military , lannet barmaid named alison. not technically doctor monsters since appeared in failed attempt restart series before permanently revived.

shambonie

an alien race said have large foreheads.

shansheeth

the shansheeth race of vulture-like aliens appear in death of doctor russell t davies. fleet of shansheeth announce sarah jane via unit death of doctor, , take charge of funeral procession; mr smith confirms status undertakers of universe, finding fallen heroes on battlefields. however, band of shansheeth sarah jane , former companion jo jones (katy manning) encounter want use companions memories of doctor, in conjunction memory weave device create tardis key can steal tardis , prevent death across timeline. sarah , jo, instead, overload device, blows , destroys shansheeth along unit accomplice. main branch of shansheeth later apologise sarah jane actions of rogue group.

shrivenzale

simon

simon alien mentioned on torchwood website, in article attached to, , in, amanda davies diary. travelling on earth, seeking discover source of life. wandered countryside village , taken in davies family. simon, having based appearance on jon bon jovi, near-instantly seduced family s daughter - amanda, , left pregnant alien baby (which developed, , began degrade health). simon disappeared around same time jack harkness arrived (implying had been captured or killed torchwood), , later jack met amanda s father , (apparently) made agreement have entire village, including amanda, subjected amnesia pills, have records , evidence davies existed in village (including amanda s diary) confiscated, have alien baby removed before amanda died, , send davies family away new identity.

the silence

self-proclaimed sentinals of history , silence genetically engineered members of papal mainframe under academy of question. created confessional priests, silents cannot remembered unless being looked at, or if wearing eyedrive. in time of doctor, doctor s enemies converging on trenzalore, papal mainframe underwent faith conversion church of silence main belief silence fall keep doctor answering oldest question in universe doctor who? avert war caused time lords return. however, group of silents under splinter chapel led madam kovarian wanted avoid siege of trenzalore eliminating doctor: attempts range destroying reality in series 5, caused events @ trenzalore, , using melody pond in attempt murder doctor in series 6. silents still loyal papal mainframe remain , joined forces doctor fight villains converging on trenzalore.

silurian

siren

the siren virtual doctor aboard spaceship of unknown alien race crashed in dimension parallel ocean ship fancy sailing on in 1699. protein circuitry , appear before species in form alluring them cooperation. sedate patients, siren sing beautiful vocal song. however, being nothing more program, siren had little reasoning skills. siren turned red demonic-looking face when faced resistance , germs. when ship doctor crashed in spatial rift fancy had been becalmed (and crew dead human disease), impulsively started take injured of ship, if simple cut, showing great lack of intelligence. not doctor s arrival, siren have reached shore , started trying process ill. captain henry avery, toby avery , crew of fancy took on ship give after, , see universe.

sirian

a race of humanoids star sirius.

sisterhood of karn

a female religion in charge of elixir of eternal life. elixir has remarkable healing properties, such aiding time lords undergoing difficult regenerations; fourth doctor given after brain damage in mental duel morbius. other potions sisterhood brew can allow time lords choose next incarnation like; range age, weight, strength, emotion, sex , mindset. seeing person had been regenerations wasn t suited combat terror of time war, eighth doctor choose potion turn him warrior.

skarasen

a creature brought earth zygons became loch ness monster.

skonnan

skullion

skullions one-eyed extraterrestrials, originating planet skultos. hydrophobic, meaning water burn skullions in torturous way. stated can drink citric juices.

in man never was, skullion ship crashed china aliens sold @ black market harrison, uses them slaves, attaching collars necks torturing devices. sarah jane smith , friends able save them though, contacting home planet. rescue ship arrives, beaming skullions , harrison, refused let them escape.

sky fish

the sky fish fish-like creature capable of swimming through air using electricity of planet ember s crystalline fog. attracted music causes crystals in fog resonate in way produces delta waves. vary small fish grown sharks.

slitheen

the slitheen family of massive, bipedal extraterrestrials. creatures of living calcium, hatched eggs , native planet raxacoricofallapatorius. while, strictly speaking, name slitheen refers specific family, term has been used doctor refer raxacoricofallapatorian race in general.

the slitheen able wear human s skin disguise, using compression field shrink themselves. made of calcium, vulnerable acetic acid (vinegar).

the slitheen have appeared in doctor episodes aliens of london, world war 3 , boom town , interactive episode, attack of graske. raxacoricofallapatorius love, mini episode of sarah jane adventures comic relief, featured ronnie corbett small slitheen. have appeared in sarah jane adventures episodes revenge of slitheen , lost boy.

the slitheen mentioned being part of alliance formed trap doctor in pandorica opens .

slyther

the slyther monster served daleks. seen in episodes 4 , 5 of dalek invasion of earth (1964), guarding dalek mines in bedfordshire. after slyther attacked small group of humans, killing ashton, ian hit rock, causing fall down pit death.

solonian

the solonians race of humanoid creatures planet solos, colonized overlords. atmosphere contains nitrogen isotope causes air become toxic humans in sunlight, although has no effect on solonians. because solos environment changes drastically every 500 years, must undergo major mutations periodically in order survive.

sontarans

a sontaran first appeared antagonist in third doctor serial time warrior. sontarans referred in eye of gorgon bea said looked huge potato raygun. commander kaagh appears in series 2 in story last sontaran after destruction of battle fleet death of other sontarans on board in doctor two-parter episodes sontaran strategem , poison sky . returns in enemy of bane, sides mrs wormwood, recurring bane. in end, sacrifices himself foil plans of destruction of earth. makes small appearance in pandorica opens. sontarans remain miffed weren t allowed fight in time war.

as seen strax, sontarans can t tell difference between men , women ( 2 genders bit further [they] can count ), , think polite terms such miss or mister military ranks.

spiridon

the spiridons featured in serial planet of daleks (1973). dominant species of sentient humanoids on planet spiridon in ninth system. have developed form of invisibility, capable of generating anti-reflecting light waves . become visible after death, having pale skin , gaunt appearance. wear heavy purple fur cloaks @ night protect harsh nights of spiridon. doctor returns spiridon in spin-off audio adventures return of daleks , brotherhood of daleks.

star whale

the star whale giant whale-like creature, presumed last of kind, used pilot starship uk, save citizens dangerous solar flares. whale has features of other animals such anglerfish angler, octopus tentacles , scorpions tail, having bright pink hide bioluminescent patches. arrived on earth heard children of united kingdom crying, , unable bear sound. believing arrival one-in-a-million miracle, people of britain captured , built ship around it, torturing via powerful electric pulses, administered directly opened pain center of whale s brain, in order keep ship flying. on years, realised not justify keeping creature in agony, feared if set free, ship , aboard destroyed creature fled, chose instead forget, , fed protested beast. when doctor learnt of this, decided render creature brain-dead, ending suffering , saving lives of on ship, amy set free, revealing whale had volunteered help, , contrary beliefs of station s masters, continue flying without need torture it.

the creature s exact size not specified, , visible in entirety towards episode s ending. however, assuming starship uk large enough accommodate millions of former great britain s inhabitants, scale of ship gigantic, putting star whale s size @ several thousand kilometers in length @ least. however, during scene in doctor , amy pond find within star whale s mouth, creature s rows of teeth appear dozen or meters across, which, in proportion creature s body, make star whale considerably smaller. whether intentionally paradoxical or production error not specified.

stigorax

a species appears large, furry rats; carnivorous. last of stigorax adopted helen a, named fifi , took care of it. fifi released sewer pipes chase , devour escaping criminals. fifi later fatally wounded collapsing in pipe, managing climb out in time helen find it; fifi s death showed helen sadness not prevented.

swampie

green-skinned, , green-haired, natives of third moon of delta magma; other color green, appear quite similar humans. swampies appear intelligent, have primitive worship of giant squid called kroll. lack technology, similar primitives. interestingly, throughout power of kroll, male swampies seen.

the swarm

also known unified intelligence-taskforce (unit) stingrays, flying manta ray-like creatures, metal exoskeletons allow them travel planet planet via wormholes. consume on planet, turning desert; , swarm on planet s surface, generating wormhole allows them travel next planet.

the stingrays apparently arthropods, exothermic, , possess exoskeleton composed of metal has been ingested exuded exoskeleton. voracious feeders, eating both organic , inorganic materials ranging flesh , bone plant matter metals , plastic. produce vast numbers of young , grow birth adult in under year, shown when tenth doctor shows year-old clip of san helios before stingray infestation.

they travel other planets through wormholes created in fabric of spacetime circling planet faster , faster, , each swarm can contain billions of giant stingrays, rip hole in space. wormholes can transport whole swarm infinite distance through space.

swarm (virus)

sycorax

the sycorax first appeared in debut tenth doctor story christmas invasion in 2005.

the sycorax appear skinless humanoids wearing mantles of bone, keeping features concealed under helmets. proficient in use of weapons swords , whips, latter can deliver energy discharge disintegrates flesh of target. language called sycoraxic. sycorax appear have technology either disguised or treated magic, referring curses , doctor s regenerative abilities witchcraft . sycorax leader referred armada use take earth force if blood control plan failed. appear have martial society, traditions of honourable combat, yet have no qualms killing prisoners.

according write-up russell t davies on bbc website, sycorax facial structure inspired skull of horse. according same write-up, sycorax originated on asteroid in distant jx82 system, known fire trap. uplifted when spaceship crashed on asteroid , sycorax leader enslaved survivors, forcing aliens teach them technology. asteroid retrofitted first of many spaceships, sycorax used raid other planets, becoming feared interstellar scavengers. reputation made clear in attitude other inferior races. sycorax leader comments rose not dirty tongue language, , translated word human can taken mean cattle . armada permanently in orbit around jewel of staa crafell.

in doctor files books, name of sycorax homeworld given sycorax . unclear if name fire trap. furthermore, after destruction of fire trap, sycorax spread further through galaxy, , humans 1 of 3 species continually survive , adapt, unto end of universe.

the name sycorax used in william shakespeare s play tempest. shakespeare s sycorax has died before play begins; described witch mother of beast caliban. shakespearean name referenced in third series episode shakespeare code when doctor finds horse s skull in globe s prop cupboard. comments reminds [him] of sycorax . shakespeare remarks likes sound of word, going on use in tempest.

the sycorax make brief appearance in pandorica opens part of alliance formed trap doctor. later, in name of doctor , great intelligence mentions them 1 of left doctor blood-soaked.

in issue #1 of idw published doctor comic book, sycorax collecting near-extinct species use shape-shifters expensive hunts. sycorax race make return in tenth doctor comic strip widow s curse , in doctor magazine #395. dwm comic story first appearance of female sycorax, seem operate separately males.