The Eleven The Eleven was the main alias used by a Time Lord criminal in his eleventh incarnation . He had a mental illness called regenerative dissonance , which manifested as his previous incarnations ' personalities arguing in his mind . Each incarnation went by a sequential number . Biography . The One . The One once worked in the Panopticon Archive , where he found information about a prototype stellar manipulator . He had a seat on the High Council . He later left Gallifrey and became a criminal . ( AUDIO : " The Eleven " , " The Satanic Mill " ) The Two . The Two boasted that his " nose was particularly good at sniffing out traitors . " Within the Eleven , he exposed Volstrom ' s betrayal of Padrac as an agent of Ollistra . ( AUDIO : " Songs of Love " ) The Three . The Three was noted by the Eighth Doctor was one of the personalities more willing to kill . ( AUDIO : " The Eleven " ) The Four . The Four was described by the Eighth Doctor as " weaker than the Eleven " . ( AUDIO : " Stop the Clock " ) The Six . The Six was by far the most violent of the Eleven ' s personalities , and also one of the most unstable . He would often try to get the Eleven to butcher his way through a situation , regardless of whether the victims could be of use . ( AUDIO : " The Eleven " ) The Eight . The Eight was an aberration compared to his other incarnations , attempting to be a " good man " . Using meditation , he was able to suppress the voices of his previous incarnations . He became involved with the Time Lords ' ( and his ) future , attempting to stop the Eighth Doctor from assembling the Doomsday Chronometer . After he was killed by the Clocksmith , the Eight retreated into the Doctor ' s TARDIS and regenerated . When the regeneration occurred , he heard the voices of his previous selves , who urged him to regenerate and also taunted him for not being one of them , while the Six wanted to return so he could kill people again . ( AUDIO : " The Eighth Piece " / " The Doomsday Chronometer " ) Now a thriving persona inside the Eleven ' s consciousness , he successfully took control of his physical body and told the Doctor about Padrac ' s plans to use the Resonance Engine as a means to amplify Caleera ' s powers . ( AUDIO : " Stop the Clock " ) The Nine . After regenerating , the Nine initially claimed to be a new incarnation of the Doctor to Helen Sinclair and Liv Chenka . Rather than trying to be a " good man " like his predecessor , the Nine was motivated by kleptomaniac greed . Helen and Liv helped him to rob the archive on Gallifrey , but he abandoned Liv when she became suspicious of his erratic and condescending behaviour . He took Helen hostage , and brought her to the Crucible of Souls . He attempted to use the Crucible to gain immortality and exorcise his previous incarnations . After being thwarted by the Eighth Doctor , the Nine stole the Clocksmith ' s TARDIS and ran away . ( AUDIO : " The Crucible of Souls " ) The Ten . The Ten was known for his skills in hypnotism . He once killed a squad of Gallifreyan soldiers on Dalgar by hypnotising the first officer to kill the commander , then the second officer to the first officer , and so on . The Ten let Tessno survive the incident so that she could tell Gallifrey about what he had done . ( AUDIO : " Stop the Clock " ) The Eleven . The Eleven was originally captured by the Seventh Doctor and imprisoned on Gallifrey . Later he managed to escape and steal a TARDIS . The Eighth Doctor was brought in to find him . The Eleven installed himself as Lord President by an ancient edict , as he created a state of emergency while the President was off - world . He used the Sash of Rassilon to freeze the Time Lords . ( AUDIO : " The Eleven " ) The Eleven hired Fortuna and Cleaver to bring the Doctor to him . ( AUDIO : " The Galileo Trap " ) The Eleven found the prototype stellar manipulator and planned to use the death of a Time Lord to activate it and destroy the solar system . He captured the Doctor for these means . The Eleven ' s plans were prevented by an unknown force , and the Doctor ' s screwdriver signalled for his TARDIS to land nearby , allowing him to escape . ( AUDIO : " The Satanic Mill " ) The Eleven was once interviewed by Caleera for the archives , as he knew she was special . He convinced her to amplify her powers for his plans . ( AUDIO : " Scenes From Her Life " ) He then came to Syra as part of his plans with Caleera . He planned a trap in the mine s to kill the Doctor . He also tried to kill Liv in the mines , but River Song stopped him . He wanted to use Caleera to destroy planets . ( AUDIO : " The Sonomancer " ) He sabotaged Livia ' s TARDIS before he went to the Crucible of Souls and found out that Veklin had abandoned it . ( AUDIO : " Songs of Love " ) The Eleven later followed the Eighth Doctor and his companions to 1970s New York to track Ollistra and destroy the remaining Time Lords who were against Padrac ' s plans . There , he met t he Monk and found out about the alliance of Ollistra and the Weeping Angel s . He later manipulated the Monk and the Weeping Angels to do his bidding and used the latter to take the Time Lords who were hiding in New York as hostages . After a heating argument , he pushed Ollistra from the top of the building and fought the Doctor . Then , it was revealed that Padrac was just using the Eleven as a pawn , causing a commotion between his past incarnations . This pushed the Eleven to use his Time Ring to go back to Gallifrey and see the truth . The Doctor used this as his chance to follow him to Gallifrey . ( AUDIO : " The Side of the Angels " ) The Eleven later found out that he could not enter the Capitol , and was found by Tessno outside the city . The latter almost killed him due to personal grudge , but the Doctor stopped her from doing so . The Eleven was later brought in to the headquarters of the Opposition . Tessno was asked to lock him inside a room , where he provoked Tessno by using her grudge against her . Tessno released the Eleven to challenge him , but he killed her instead and escaped . He later brought Helen as hostage and rode a Battle TARDIS to counter the plan of the Doctor to disguise as the Eleven to infiltrate Padrac ' s headquarters . When Caleera gave Helen the power of the Sonomancer , he was held down by Helen as the latter used the Battle TARDIS to destroy the Resonance Engine . ( AUDIO : " Stop the Clock " )