Slitheen family The Slitheen were a family of Raxacoricofallapatorian criminals . The Slitheen were rivals ( and " cousins " ) of the Blathereen family , ( TV : " The Gift " ) cousins of the Rackateen family and descendants of the Slavereen who were descended from the Changleen family , the earliest descendants of the Huspick Degenerate . ( WC : " " ) History . Early history . The Slitheen were from Raxacoricofallapatorius originally and bribed their way into government . Their rule crashed the planet ' s economy and eventually , the population rose up against them . ( TV : " The Gift " ) The entire family was tried and found guilty in perpetuity and sentenced to death . ( TV : " Boom Town " ) The Judoon forced the Slitheen out and many of them fled justice . ( TV : " Revenge of the Slitheen " ) In 102 , the Slitheen were among the factions who joined the Alliance . They came to Stonehenge and helped imprison the Eleventh Doctor in the Pandorica to save the universe . ( TV : " The Pandorica Opens " ) When the plan failed , they were turned to dust and removed from the universe along with the rest of creation . They were returned when the Doctor " reset " the universe . ( TV : " The Big Bang " ) 21st century . In March 2006 the Passameer - Day branch disguised themselves as various human s holding leadership positions and attempted to seize control of the British government in an effort to start a nuclear war . Their ultimate aim was to turn the Earth into a huge nuclear reactor pile and sell its remains off as starship fuel . This attempt was foiled by the Ninth Doctor when he ordered Mickey Smith to shoot down Downing Street with a missile . ( TV : " Aliens of London " , " World War Three " ) Blon Fel - Fotch Passameer - Day Slitheen survived ; having teleported to the Isle of Dogs . Later the same year , in September , Blon managed to get herself elected Mayor of Cardiff , and tried to abuse her position in an attempt to escape being stranded on Earth by destroying a local nuclear reactor . The Cardiff Space - Time Rift would amplify the explosion so it would not only destroy Earth but enable her to escape the planet safely on her tribophysical waveform macro - kinetic extrapolator . This effort was also foiled by the Doctor and his allies when the Doctor used his sonic screwdriver to reverse Blon ' s teleport . When she tried to use the TARDIS as a secondary explosion , Blon was reverted to an egg by the heart of the TARDIS and returned to her home planet to be given a second chance at life . ( TV : " Boom Town " ) Renamed Margaret , after her human identity , Blon was adopted by the Jingatheen family . ( COMIC : " A Confusion of Angels " ) Around March 2007 , The Lutiven - Day Branch of the family took over a building company called Coldfire Construction and placed transducers around the Earth to absorb the Sun ' s energy , destroying the Earth and avenge the Passameer - Day members who died . After doing so , they intended to buy a fleet of ships to destroy the Grand Council of Raxacoricofallapatorius . 18 months later , in 2008 , this group of Slitheen used equations by Luke Smith to correctly power the final stage of the machine at Park Vale Comprehensive School after it had been malfunctioning . As Luke didn ' t anticipate them draining the Sun , the machine overloaded , and they were forced to switch it off . Luke began to reset the system , but his mother Sarah Jane handed him her sonic lipstick , and he shorted out the machine . Several Slitheen were accidentally killed in this incident , including twelve - year - old Korst Gogg Thek Lutiven - Day Slitheen ' s father , Kist Magg Thek . ( TV : " Revenge of the Slitheen " ) Having teleported away , later in 2008 , Korst Gogg Thek teamed up with two other adult Slitheen and the Xylok Mr Smith to seek revenge . Mr Smith had secretly been manipulating the Slitheen to power Luke ' s mind with MITRE , bringing the Moon crashing into the Earth . With a mutual enemy , the Slitheen reluctantly teamed up with Sarah Jane and provided her with a teleport so she could reach Mr Smith . The Armageddon virus was successfully uploaded into Mr Smith with help from K9 Mark IV to stop the plot and the Slitheen departed without further conflict . ( TV : " The Lost Boy " ) At some point in 2009 , a member of the family took the body of Ambassador Rahnius of the Galactic Alliance and attempted to steal K9 from Sarah Jane . ( TV : " From Raxacoricofallapatorius with Love " ) Later , two more Slitheen would attempt to crush the Earth into a giant diamond ; they were thwarted and captured by two Blathereen , who sentenced them to death . The Blathereen would later be revealed to be Slitheen - Blathereen , a family descended from both families and with the morals of the Slitheen side . Their intervention in the Slitheen crisis was to put into action their own plot . ( TV : " The Gift " ) In September 2009 a Slitheen tried to kill Sarah Jane with a bomb , but it was deactivated by K9 . Clyde Langer splashed the Slitheen with a bucket of vinegar , destroying it . ( TV : " The Nightmare Man " ) One Slitheen was captured by the Krulius and stored in a data - pod . The Krulius later used his digital bio - converter to upload the Slitheen ' s bio data onto the internet . There it was found by Mr Smith , Rani Chandra and Clyde Langer who sent the Slitheen back to his original place . ( COMIC : " Monster Hunt " ) Another Slitheen was kept at the Doloth Star Base . When the Judoon caught the Krulius all his captured aliens were set free . However , the Krulius had managed to take clone cell samples of his former captured aliens with him , which allowed him to grew perfect copies of these aliens . ( COMIC : " Return of the Krulius " ) In late 2010 , two Slitheen took part in the army of alien slaves led by the Krulius to attack Sarah Jane ' s house . When Clyde defeated several of the aliens , the Slitheen regrouped with the army and the Krulius ordered them to retreat . Sarah Jane thought that the aliens in the army were under some kind of hypnotic influence . ( COMIC : " Defending Bannerman Road " ) By 2012 , Henry van Statten possessed a Slitheen arm . ( TV : " Dalek " ) Later 21st century . A group of Slitheen returned to Earth in the late 21st century with hostile intentions but went home after a short time . ( PROSE : " Snowglobe 7 " ) Post - 21st century . After these attempts , their fortunes started to wane . They were put out of business by the Blathereen , who were cheaper and more effective . In the year 2501 , Ecktosca and Dram discovered the activities going on in Justicia and attempted to take over the operations . They were captured but later escaped with the help of the Ninth Doctor . After the death of Don Arco , they stole the surviving warp - hole technology to rebuild their fortune . ( PROSE : " The Monsters Inside " ) By the 347th century , the family were still exiled from Raxacoricofallapatorius , although they expected a reappraisal in the coming 1000 years . They were also involved in the Platonic War , being among those defeated by the human s . As a form of revenge , they travelled back to an early point in human history , when Greece was facing famine . They gave them food , in exchange asking for champions to fight for them . The Slitheen were actually running a temporal tourist tour , with alien s coming to see the sites of future monuments and with the human fighters being killed for their entertainment . Their eventual plan was for the humans to become too dependent on them , never develop technology and never develop an advanced civilisation . The Tenth Doctor and June tried to stop them peacefully , but instead , the native Greeks fought back , destroying their time travel technology and throwing the whole organisation into chaos . Mamps , Cosmo and Leeb Slitheen escaped but were trapped in the past . When their time - travel package tour appeared to kill a tourist , they were taken to court and bankrupted , with police being sent back to capture Mamps , Cosmo and Leeb . ( PROSE : " The Slitheen Excursion " ) A Slitheen visited the Fluren Temporal Bazaar to purchase weaponry left over from aborted timelines and the Last Great Time War . ( COMIC : " Weapons of Past Destruction " ) At an unknown date , the Slitheen were among many species present at the Trenzalore after being drawn there by the Time Lord s asking the First Question from another universe . The Slitheen took part in the Siege of Trenzalore but they either retreated or were killed in the fighting which took place when the Dalek s bypassed the Papal Mainframe ' s planet - wide force field and the other fleet s followed them in their wake to the planet ' s surface . ( TV : " The Time of the Doctor " ) Alternate timelines . In an alternate dimension in which the Doctor ' s adventures existed as a fictional TV show called " Doctor Who " , a fan dressed as a Slitheen was present at a " Doctor Who " convention which the Eleventh Doctor visited with Ally in 2013 . ( COMIC : " The Girl Who Loved Doctor Who " ) Known members . Branches . Some of the known branches include ; the Passameer - Day Branch , the Lutiven - Day Branch , the Heppen - Bar Branch and the Hangle - Wang Branch . Unnamed individuals of the family include ; a member of the Passameer - Day Slitheen who posed as Oliver Charles and General R . Asquith . ( TV : " Aliens of London " / " World War Three " ) , a member of the Passameer - Day Slitheen who posed as RAF Group Captain Tennant James . ( TV : " Aliens of London " / " World War Three " ) , a member of the Passameer - Day Slitheen who posed as Ewan McAllister , Deputy Secretary for the Scottish Parliament . ( TV : " Aliens of London " / " World War Three " ) , a member of the Passameer - Day Slitheen who posed as Sylvia Dillane , chairman of the North Sea Boating Club . ( TV : " Aliens of London " / " World War Three " ) , a Slitheen who posed as Ambassador Rahnius of the Galactic Alliance . ( TV : " From Raxacoricofallapatorius with Love " ) , an adult and child Slitheen who worked together in an attempt to compress Earth into a gigantic diamond , only for the two to be captured by the Slitheen - Blathereen . ( TV : " The Gift ) " and a Slitheen , whose skin was a darker green than usual , who attempted to blow up Sarah Jane and Luke Smith but was killed when Clyde Langer threw a bucket of vinegar at him . ( TV : " The Nightmare Man " ) Cultural details . The Slitheen placed great importance to hunting , including the hunting of sentient prey . ( TV : " Revenge of the Slitheen " ) They sometimes displayed joy at triumph by disrobing . ( TV : " World War Three " ) According to Bloorm Vungah Bart Slitheen , the bartleboigle tree was used to discipline children by spanking their backside s . ( TV : " The Lost Boy " ) Blon said that the Slitheen used Venom Grub s to dispose of family members not willing to engage in criminal activities . ( TV : " Boom Town " ) When one or a group of Slitheen found themselves in a confrontation with multiple individuals , a common tactic was to grab one of them by the neck and threaten to kill them unless the others followed their demands . ( TV : " Boom Town " , TV : " The Lost Boy " , " The Gift " ) The Slitheen drank Wullagula . ( PROSE : " The Slitheen Excursion " ) Technology . The Slitheen had developed a method of disguising themselves as humans by first obtaining the skin of a dead human - referred to as a skin suit - and compressing themselves into it . In order for this to work the human victim needed to be heavy set , and the compression had a side effect : a gas exchange occurs which causes the disguised Slitheen to frequently expel gas with a sound similar to human flatulation . ( TV : " Aliens of London " , " Revenge of the Slitheen " ) By late 2008 the compression field technology was improved to allow Slitheen to assume a greater variety of human body types , and the gas - exchange issue was eliminated . ( TV : " The Lost Boy " ) However , the Slitheen didn ' t invent this technology , they stole it from the Blathereen family . ( PROSE : " The Lost Boy " ) It wasn ' t always initially used ( TV : " From Raxacoricofallapatorius with Love " , " The Gift " ) , but would remain the standard until at least 2501 . ( PROSE : " The Monsters Inside " ) They also invented a transporter pendant which could teleport them from one place to another . ( TV : " Revenge of the Slitheen " ) In the 347th century , the Slitheen had molecular repurposing devices , remotely controlled ships and time travel ling technology stolen from the Navarino s . ( PROSE : " The Slitheen Excursion " ) References . The Tenth Doctor asked Donna Noble if Lance Bennett was " a bit overweight with a zip Around his forehead " , referring to the Slitheen ' s methods of disguising themselves . ( TV : " The Runaway Bride " ) John Smith ' s " A Journal of Impossible Things " featured drawings of the Slitheen , with a caption saying " it ' s always for the money " . ( TV : " Human Nature " / " The Family of Blood " ) The Tenth Doctor referred to the Slitheen when Martha Jones recalled the earthquake in Cardiff . ( TV : " Utopia " ) The Tenth Doctor compared noisy snoring to a Slitheen gargling . ( PROSE : " The Colour of Darkness " ) Rose Tyler wondered if the newly regenerated Tenth Doctor was a Slitheen . ( TV : " Children in Need Special " ) While attempting to bluff the Sycorax into leaving Earth alone , Rose later tried to invoke the authority of the " Slitheen Parliament of Raxacoricofallapatorius " , among other species she had encountered on her travels . ( TV : " The Christmas Invasion " ) Rose once remarked that the Abzorbaloff looked " a bit Slitheen " . ( TV : " Love & Monsters " ) Sarah Jane Smith was congratulated by Jack Harkness on her defeats of the Slitheen . ( TV : " The Stolen Earth " ) Luke told Sarah Jane , Clyde and Rani that his friends at the University of Oxford lived off baked beans and curry . Clyde remarked that it must be like living with the Slitheen . ( TV : " The Vault of Secrets " ) When cyborg hacker Psi was attempting to protect Clara Oswald from the Teller , he ensured that it would focus on his guilt by uploading the memories of some of the worst criminals in history , one of them being the Slitheen family . ( TV : " Time Heist " ) Behind the scenes . " Attack of the Graske " . A Slitheen appears in NOTVALID : " Attack of the Graske " , a story this wiki does not consider to be as it has multiple endings , which we cannot qualify through any mechanism which is the " correct " or " canonical " one . In " Attack of the Graske " , an unnamed Slitheen was captured by the Graske and replaced by a changeling . When it broke free from its prison it chased a Graske . A companion of the Tenth Doctor could then choose from two fates for this Slitheen , either freezing it in place forever or returning it home . " The Visual Dictionary " . According to the reference book , " The Visual Dictionary " , which this wiki does not count as a valid source , the Slitheen were one the oldest families on Raxacoricofallapatorius . " Monsters and Villains " . According to the reference book , " Monsters and Villains " , which this wiki does not count as a valid source , the Slitheen continued to be hunted down by the Judoon and Wrarth Warrior s after leaving Raxacoricofallapatorius .