Dalek X Dalek X , also known as the Dalek Inquisitor General , was one of the most sacred and feared Dalek s before the Last Great Time War . He was described as having a gunmetal black casing with gold vertical slats and sensor globes . Biography . Dalek X ' s name was famous across the universe , but it was not his real name ; he adopted the title in the knowledge that it evoked fear in human s . It was every bounty hunter ' s dream to defeat him , but also every bounty hunter ' s fear to encounter him . He was often called " the Devil in Dalek form " . He commanded the first " Exterminator " - class Dalek vessel , the " Exterminator " , and had a squad of Assault Dalek s equipped with laser - cutting claws in place of manipulator arm s . He had at least two elite guards , armed with double gunstick s . It answered only to the Supreme Dalek . It ordered the destruction of a flagship in the Auros escape fleet . Dalek X lasted until the end of the Second Dalek War when he encountered the Tenth Doctor , travelling to the Dalek Base after the Doctor and a team of bounty hunters were captured . After enslaving them , he thought himself victorious over the Time Lord . He exterminated one of the Daleks in the Mines for progress being too slow , then gave orders that every hour the weakest team of miners should be exterminated . Dalek X tortured the Doctor in many ways , simply to see how much pain he could endure . In the end , his methods proved unsuccessful ; the Doctor resisted them all . The Doctor agreed to give him his TARDIS when Dalek X threatened to kill a mother and a daughter . He left with the Doctor , Command Dalek , the Temporal Research Team and the surviving bounty hunters to the planet Hurala and the abandoned Lodestar refuelling station . In a rage , one of the bounty hunters fought the Daleks and was killed in the process , although the Doctor escaped with the others . Dalek X was attacked from below and knocked into a pit . The Doctor and the others detonated the station , destroying the other Daleks and the " Exterminator " , along with the other ships . The Dalek Fleet was thrown into disarray by this incident . Dalek X was thought dead , but later the Doctor recognised his radio waves broadcasting across the universe for help , and homed in on him . The Doctor finished what he had started , leaving Dalek X to suffer forever in the darkness , living off life support systems and the astronic radiation , never able to get help because the planet ' s systems stopped other Daleks from receiving the signal and the planet had been quarantined due to the radiation . The Doctor claimed it would be at least 5000 years before anybody heard the transmission , by which time Dalek X would be gone . Dalek X vowed to survive , claiming that the Daleks would never be defeated , but the Doctor countered by informing him that Daleks were always defeated because they were incapable of accepting that every other being in the universe was better than them , the Doctor observing that , for all the Daleks ' proclamation to be the superior beings , nobody in the universe would volunteer to become a Dalek , to which Dalek X had nothing to say in response . As the Doctor departed , Dalek X promised to come back and get his revenge on the Doctor , who promised to be waiting for him . ( PROSE : " Prisoner of the Daleks " ) Personality . Dalek X was ruthless and feared Dalek . He punished a mine Dalek by exterminating him . Dalek X ' s arrogance led him trapped on a quarantine on the planet Hurala . He believed the Daleks would control the TARDIS without the Doctor . ( PROSE : " Prisoner of the Daleks " )