The Valeyard The Valeyard was , according to , the distillation of all that was evil in the Doctor , and a composite of his every dark thought . Biography . Pre - creation . The Sixth Doctor found himself in an alternate version of London created by Ashley Chapel ' s use of the Millennium Codex . He manifested magic al powers suitable to the new , unstable universe ' s laws of physics . Using these powers began to transform him into a variant of the Valeyard . The Doctor ' s fears of becoming the Valeyard allowed his potential in the Doctor to combine with the Great Kingdom ' s unique physical properties and the Doctor ' s ability to regenerate . This temporarily made him the Valeyard . The Doctor ' s true self was able to re - manifest with the aid of the TARDIS as he forced down the aspect of the Valeyard within himself , the Doctor acknowledging the Valeyard ' s argument that the ruthless course of action was sometimes necessary but rejecting the idea that he had to enjoy such actions to do it . ( PROSE : " Millennial Rites " ) When the Seventh Doctor slept , he dreamed of his other selves in his mind , and heard the Valeyard threaten that " when the [ Doctor ' s ] strength was at its lowest , he would reach out from the recesses of [ the Doctor ' s ] subconscious and seize [ his body ] . " ( PROSE : " Head Games " ) When the Eighth Doctor looked into a Tomorrow Window , he saw the Valeyard standing " alone on a sand dune , [ his ] hair in a ponytail , [ and ] cloak flapping in the wind . ( PROSE : " The Tomorrow Windows " ) Origin . The Valeyard was , according to , an " amalgamation of the darker sides of [ the Doctor ' s ] nature , [ taken ] somewhere between [ his ] twelfth and final incarnation " , ( TV : " The Ultimate Foe " ) reportedly being brought into being by the High Council . ( PROSE : " The Eight Doctors " ) According to a tale told by the Valeyard himself , which the Sixth Doctor noted could have " a grain of truth [ to ] it " , the Valeyard was created as a Time Tot on a mud planet orbiting Etarho during a period when the thirteenth incarnation of the Doctor was experimenting with ways to break the twelve - regeneration limit imposed on Time Lords by Rassilon . At the young age of twenty , the Valeyard was found wandering the mud swamps of the planet by a group of scavengers , who kindly gave him food to eat and , when they learned what race he belonged to , sent him to Gallifrey . The Time Lords examined the Valeyard ' s biodata and found that it was an exact match with the Doctor ' s sample . Knowing that this meant that the Valeyard was a temporal anomaly , they sent him to a Shadow House . In the Shadow House , the Valeyard met a Time Lord who had been damaged due to temporal interventions by his future self and therefore had his regeneration permanently stuck in a paradox . The man told the Valeyard to study the science of regeneration , in order to gain revenge on the Time Lords for what they had done to every member of the Shadow House . ( AUDIO : " Trial of the Valeyard " ) According to Genesta , the Valeyard was created by the Time Lord s using black ops technology , possibly as a weapon . However , Genesta was replaced by the disguised Valeyard himself at some point , and he refused to reveal whether the claims were made by the real Genesta or him . ( AUDIO : " The Brink of Death " ) First meeting with the Doctor . On behalf of the corrupt High Council , seeking to cover up the Ravolox affair that the Sixth Doctor had accidentally uncovered , the Valeyard acted as the prosecutor in the Doctor ' s trial in exchange for his seven remaining regeneration s . ( TV : " The Ultimate Foe " ) Keeping his end of the bargain , the Valeyard presented extracts from the Matrix depicting recent events in the Doctor ' s life as evidence of the Doctor violating the Time Lord s ' non - interference policy . ( TV : " The Mysterious Planet " , " Mindwarp " ) Unbeknownst to the Time Lord jury present at the trial , the Valeyard had tampered with the Matrix extracts to show the Doctor in the worst possible light and steer the trial to a guilty verdict . He created the impression of the Doctor abandoning his companion , Peri Brown , to save himself , ( TV : " Mindwarp " ) and also added the charge of genocide of the Vervoid s , despite their artificial nature and the act being from the Doctor ' s future . ( TV : " Terror of the Vervoids " ) Attempting to secure a guilty verdict , the Valeyard was somehow able to force an alternate timeline where the Doctor would be judged guilty and arranged to oversee his execution , intending for this timeline to become real once the Doctor had been shot . However , the Doctor was saved from execution when his eighth incarnation arrived to save him , the temporal stasis created when two incarnations met allowing the Sixth Doctor to retreat into the Eighth ' s TARDIS . Although the timeline that created him was erased after his departure , and the Sixth Doctor travelling with the Eighth vanished a short while later , he existed long enough to assist the Eighth Doctor in setting up an inquiry into the trial using their previous role as President . ( PROSE : " The Eight Doctors " ) Back on the station , the Master eventually stepped in after taking delight in seeing the Doctor ' s plight , sending Sabalom Glitz and Melanie Bush to act as witnesses for the Doctor ' s version of events , and revealed the Valeyard ' s origin and motives . The Valeyard escaped into the Matrix via the Seventh Door , which he opened with a copy of the Key of Rassilon . He was pursued and finally defeated by the Sixth Doctor when he tried to use a particle disseminator to destroy the court at the Doctor ' s trial . The Doctor programmed the disseminator to feed back into the Matrix and escaped before the resulting blast apparently destroyed the Valeyard . The Inquisitor dismissed the trial . However , as the Sixth Doctor and his companion Melanie Bush departed , the Valeyard was secretly still present – having somehow escaped under the guise of the Keeper of the Matrix . ( TV : " The Ultimate Foe " ) Back on Gallifrey , the Eighth Doctor ' s Commission of Inquiry into his past self ' s trial that resulted in the dismissal of the renegade High Council responsible , as well as the temporary restoration of Borusa to guide Gallifrey through the immediate turmoil caused by the exposure of their crimes . ( PROSE : " The Eight Doctors " ) On trial . The Valeyard was found by the Time Lords on the moon of Etarho , and was captured and ordered to reveal the secret research into regeneration the thirteenth incarnation of the Doctor had allegedly performed there . The Valeyard refused , and as a result he was placed on trial with a faked charge of having hacked into the Matrix . He asked for the Sixth Doctor to be his defence . The Valeyard told the Doctor and Inquisitor Darkel of his supposed origins , during which he voiced heresy against the limit Rassilon had imposed on regeneration , suggesting it was only a measure of control from Rassilon ' s side and was possible to break . As a result he was judged to immediate termination , but he managed to fake his execution by using a hidden Matrix door placed under the dock , and he escaped through it onto the surface of Etarho ' s moon . On the moon of Etarho , the Valeyard impersonated the Thirteenth Doctor , and tricked the Doctor into taking a bomb from him . The Doctor discovered his ruse , and the Valeyard escaped again by entering another Matrix door . The Doctor assumed that the Valeyard would likely try again at some point to exact revenge on both himself and Darkel , and warned Darkel that it was very likely the Valeyard had received help from someone powerful on the Time Lord council , pointing out that it would have been very difficult for him to sneak a Matrix door into the courtroom all by himself . ( AUDIO : " Trial of the Valeyard " ) Further encounters . The Valeyard subsequently devised the identity of a man called Zimmerman to send assassins after the Sixth Doctor and sell various Time Lord secrets . However , both plans failed when the Doctor ' s investigation into the assassins ' activities revealed Zimmerman ' s actions ( Although not his identity ) while his link to the Matrix would ensure that the Time Lords learned about them as well . The Doctor later managed to get the assassins off his trail by using a stolen temporal circuit to put himself in temporal stasis , frozen between heartbeats and thus legally dead , resulting in the assassins being forced to accept that they had technically killed him even if he was alive later . ( PROSE : " " ) Master plan . After his last encounter with the Doctor , the Valeyard was left in a weakened state , not even able to maintain his normal appearance . He travelled to the Parallel Sect ' s Dimensional Nexus to use its properties to restore himself . This plan was brought to a halt when arrived , desiring to use the Nexus to be able to take over any dimension he wished . His interference accidentally began to cause different universes to intersect at the Nexus , which would eventually cause an infinite number of dimensions to appear there . Fortunately for the Valeyard , the Sixth Doctor and Constance Clarke arrived . Masquerading as a man named Tim Hope , the Valeyard waited until the Doctor figured out what the Master was up to , and planted the item that the Doctor needed to fix things on Constance . After that , he confronted the Master and threatened him , forcing him to leave and never return , and to also leave the Doctor alone , as the Valeyard had a plan to deal with him . With the Dimensional Nexus restored to normal , the Valeyard was mostly restored , having retaken his normal appearance . ( AUDIO : " The End of the Line " ) For the next step , the Valeyard journeyed to the moon of Plestinious , having learned of the existence of a native species called the Nathemus , a cluster of intelligent microscopic creatures with strong psychic abilities that fed on thoughts . Knowing that the Nathemus ' s native habitat would be destroyed by the authorities of Plestinious , as they carried out plans to convert the moon to a power plant , the Valeyard saved them from their fate by extracting them into a container filled with volcanic gas from Plestinious , the only environment they could survive in . Thankful for being saved from extinction , the Nathemus pledged their loyalty to the Valeyard . He then revealed his plans to them ; he would use their psychic abilities to take control of the Matrix , allowing himself to overwrite every Time Lord who ever had existed and retroactively replace them with copies of himself , to a point where he would eventually be able to replace even Rassilon , and thereby have free reign to shape Time Lord society in any way he pleased . In exchange for the Nathemus ' help , he would give them a unique and colourful mind to feed on : that of the Sixth Doctor . ( AUDIO : " The Brink of Death " ) The Valeyard then travelled to a planet in the 31st Century . There , he set himself up as a porter , assisting Dr Paignton as she used her Psychic Extractor to remove the feral urges of the werewolves of said planet . Once the Sixth Doctor and Charlotte Pollard arrived and interfered , the Valeyard was able to steal the Extractor , using his knowledge of Charley ' s past with the Eighth Doctor to trick her into helping him distract the Doctor . He then went to the Doctor ' s TARDIS , and implanted the Nathemus into the symbiotic nuclei of the TARDIS , where they will stay and feed on the Sixth Doctor ' s mind , until they are able to access the Matrix . ( AUDIO : " The Red House " ) In the process of doing so , the Valeyard was confronted by a future Sixth Doctor , who demanded to know what he was trying to accomplish . The Valeyard believed that the Doctor ' s visit was a sign that his plan would succeed in the future , and pleased by this , he allowed the Doctor to have an audience with the Nathemus to have them explain the plan to him . The Doctor was horrified by what the Nathemus told him , but was powerless to stop the Valeyard as he was back dragged into the Matrix which he had previously escaped from . ( AUDIO : " The Brink of Death " ) The Valeyard travelled to Victorian London and posed as a man named Timothy Yardvale , convincing Henry Gordon Jago to rent him the New Regency Theatre , by claiming he wanted to stage a play . He then lured actors to the theatre and had them help him act out the regenerations of the first five Doctors , with him playing the role of the past Doctors . He would then use the Psychic Extractor on the actors , absorbing their negative emotions and killing them . He would then place the bodies in easy - to - find locations as a message to the Sixth Doctor , who eventually arrived with Flip Jackson . Having abducted Flip to act as Zoe Heriot in a twisted version of the Second Doctor ' s regeneration ( TV : " The War Games " ) , he used the Extractor on the Doctor , goading him into feeling more negative emotions , which continued the Valeyard ' s restoration . Flip managed to distract the Doctor , bringing an end to the Valeyard ' s plan . But what he managed to get from the actors and the Doctor was enough to complete his restoration . All he had to do was wait for the Nathemus to complete their work . ( AUDIO : " Stage Fright " ) Once the Nathemus finally got access , the Valeyard was able to take over the Sixth Doctor ' s life . In this position , he made arrangements for having the Nathemus continue to influence the Matrix , and managed to replace at least two other Time Lords with himself . However , an echo of the Doctor remained in the Matrix , and managed to foil the Valeyard ' s plan by telling his past self through the telepathic circuits to fly into beams of radiation from Lakertya , thus forcing him to regenerate into the Seventh Doctor , and killing the Nathemus before they could completely link with him . This left the Valeyard trapped in the Matrix with the echo of the Doctor . The Valeyard angrily protested that the Doctor had killed them both and robbed himself of a future , but the echo of the Sixth Doctor declared he would rather die than have a future as the Valeyard and added he would do so happily , knowing the last words the Valeyard would ever hear would be his . With his regeneration into the Seventh Doctor , however , the timelines shifted , leading the echo of the Sixth Doctor to quietly fade away as he was from a timeline that now no longer existed . The Valeyard , meanwhile , remained stuck in the Matrix , having once again been reduced to a weakened form . ( AUDIO : " The Brink of Death " ) Return . The Valeyard later tangled with the Doctor in his seventh incarnation , revealing his mastery of the Dark Matrix , a counterpart of the original . He assumed the identity of Jack the Ripper and used the Ripper murders to ' feed ' the Matrix . He tried to use its power to give himself a true body , unconcerned with the dangers his actions posed to history . While he committed the Ripper murders , he used the Dark Matrix to reach into his past to corrupt the Doctor ' s other selves to do his work , such as driving the Doctor to destroy other Time Lords as he left Gallifrey in his first incarnation , his fourth incarnation into destroying the Dalek s at their beginning , and his fifth incarnation into drinking the bat ' s milk himself while Peri died in his place . These corrupted incarnations became wraiths in the Valeyard ' s TARDIS , resembling cloaked , twisted versions of themselves , which he could subsequently use to animate golems to act as his agents . After the Seventh Doctor was attacked by one of the Valeyard ' s golems , he attempted to leave Ace with the First Doctor for safety , only to arrive in the alternate 1963 that would result from the Valeyard ' s presence in London . He learned the full details of the new timeline from that world ' s versions of Ian Chesterton and Barbara Wright . He travelled back to 1888 to investigate the Ripper murders after identifying them as the divergent point with Barbara ' s help , but nearly fell under the Valeyard ' s influence before he sealed his conscious mind in the TARDIS ' telepathic circuits . After wandering London as an amnesic cardsharp by the name ' Johnny ' , the Doctor was reunited with the circuits in time to save Ace from being the Ripper ' s sixth victim . Tracking the Valeyard to the church where he had established his base , the Doctor confronted his enemy - who stated that he now called himself ' the Ripper ' as he found the name more evocative - while the Ripper summoned the wraiths of the other twelve Doctors to confront the Seventh . Fleeing deeper into the tomb that was the Valeyard ' s TARDIS , the Doctor provoked the Matrix into rebellion against the Valeyard ' s control , informing it that it was still as trapped now as it had been on Gallifrey , resulting in it lashing out from its prison in the Valeyard ' s TARDIS . He fought the Ripper on the top the church , but the destruction of the Valeyard ' s TARDIS and the subsequent release of energy caused by the ' rebellion ' of the Dark Matrix seemingly killed the Valeyard and restored history to normal . ( PROSE : " Matrix " ) Legacy . The Carrionite s knew Valeyard as a name for the Doctor and used it to taunt the Sixth Doctor . Reverend Douglas Bell would advise the Doctor to take heed of their prediction that hatred would consume him , though the Doctor insisted that it was still only a possibility and not set in stone . ( AUDIO : " The Carrionite Curse " ) For a time , it was believed that the corrupted memory of the Sixth Doctor would be used as the template for the Valeyard ' s final manifestation as the Seventh Doctor began to associate him with the Valeyard , prompting the memories of the other five Doctors to seal him away in their mind . ( PROSE : " The Room With No Doors " ) The Seventh Doctor would often have nightmares about the Valeyard , and would avoid regeneration when he could , lest a regeneration crisis serve to free the Valeyard from his mind . ( PROSE : " Head Games " ) However , when the Seventh Doctor nearly died and woke up in his own grave , he accepted that he was the Doctor in all his bodies and nobody deserved to be locked away forever , allowing him to forgive his past self and remove the guilt that would have led to the Sixth Doctor ' s memory becoming the Valeyard . ( PROSE : " The Room With No Doors " ) The Tenth Doctor still considered the Valeyard to be one of his future incarnations , and wondered if the Twelfth Doctor was secretly him upon meeting him as he had scanned the Eleventh Doctor and confirmed him as his final incarnation . . The Twelfth Doctor rebuked by asking if he " looked like he was out of panto " . ( COMIC : " Four Doctors " ) On Trenzalore , the Great Intelligence claimed that the Valeyard would be one of the future aliases of the Doctor " before the end . " ( TV : " The Name of the Doctor " ) As recorded by the Testimony , the " Shadow of the Valeyard " was a name for the Doctor . ( TV : " Twice Upon a Time " ) False Valeyards . Years later , Es ' Cartrss of the Tactire assumed the form of the meta - crisis Doctor to steal the Tenth Doctor ' s memories from within the TARDIS matrix . Unlike the real meta - crisis Doctor , this illusionary form had a malevolent appearance , sporting a beard and primarily black outfit that mirrored the Doctor ' s clothes . Before revealing his true identity , Es ' Cartrss suggested to the Doctor that he was in fact the Valeyard . The Doctor dismissed this suggestion , leading to the revelation of Es ' Cartrss ' s identity . In the form of the Valeyard , Es ' Cartrss also wielded the Master ' s tissue compression eliminator , which the Tenth Doctor chided him for doing , since the Master had moved on to using a laser screwdriver . The Tenth Doctor eventually used Es ' Cartrss ' s decision to impersonate the Valeyard against him . Es ' Cartrss had assumed a Time Lord body , which no longer existed beyond the Doctor himself . The Doctor reminded the Matrix of this knowledge and purged the system of the erroneous data creating an additional Time Lord , which was Es ' Cartrss itself . This nearly killed the parasite and allowed the Doctor to reclaim his mind , who then booted the incapacitated creature out of his TARDIS . ( COMIC : " The Forgotten " ) The Tenth Doctor briefly considered the possibility that the Twelfth Doctor was the Valeyard . ( COMIC : " Four Doctors " ) Personality . The Valeyard was similar to several of the Doctor ' s incarnations , cunning and verbal , with a knack for manipulation . He had a bit of a temper , and was prone to outbursts , but generally calm and collected , also traits of several incarnations of the Doctor . However , his actions were constantly defined by his egotism . The Valeyard would risk or sacrifice anything to ensure his own existence , even break the Laws of Time and kill his own past self and try to control the Dark Matrix despite the dangers its presence would pose to established history . ( TV : " The Mysterious Planet " , " The Ultimate Foe " , PROSE : " Matrix " ) The Valeyard seemed to possess memories of the incarnations of the Doctor that fell before him . He predicted to the Sixth Doctor that he had " no idea " what was approaching in his life . He offered to tell him of his next incarnation , whom he claimed was filled with " plots and schemes , " all to " win a game that was never his to win . " He described the Doctor ' s eighth incarnation as one that " won ' t ever be able to shake the shadow of death , " and predicts that " there will be deaths " in the Doctor ' s future . ( AUDIO : " Trial of the Valeyard " ) He also expressed knowledge of the futures of the Doctor ' s companions Flip Jackson and Charley Pollard ( AUDIO : " Stage Fright " , " The Red House " ) , although in Charley ' s case it is unclear if he now remembered the full truth about her travels with the Sixth and Eighth Doctors or just made a deduction based on her presence . Appearance . The Valeyard appeared as a middle - aged man , with light grey eyes and short black hair . In full courtly dress , the Valeyard wore long black robes with a stiff black collar edged in white , and a black skullcap . After the trial of the Doctor , the Valeyard at least temporarily became the Keeper of the Matrix ; this time he wore an orange version of his previous outfit with a stiff collar . ( TV : " Mindwarp " , TV : " The Ultimate Foe " ) Inside the Matrix , he disguised himself as Mr Popplewick , a slightly overweight man with curly blond hair . In this capacity , he wore human clothes typical of the 19th / early 20th century that included a white shirt and a vest under a large blue jacket . He also wore a bow tie and a pair of glasses . ( TV : " The Ultimate Foe " ) While in London in 1888 , he was typically shown wearing a long dark robe that concealed most of his features . ( PROSE : " Matrix " )