Satan Satan , usually known as the Devil , was , according to Toby Zed , " fury and rage and death " . ( TV : " The Satan Pit " ) Oswald Danes once joked that , should the Devil walk the Earth , he ' d certainly work in PR . ( TV : " Rendition " ) According to the Tenth Doctor , " more religion s than there are planet s in the sky " had devils , also known as beasts , including the Arkiphets , Quoldonity , Christianity , Pash Pash , New Judaism , San Klah and the Church of the Tin Vagabond . Neoclassic Congregational didn ' t have a devil " per se " , only " the things that men do " , which the Doctor claimed was the " same thing in the end " . ( TV : " The Satan Pit " ) Some associated Hell with the Devil . Winston Churchill once mentioned that " If Hitler invaded Hell , I would give a favourable reference to the Devil . " ( TV : " Victory of the Daleks " ) Many people were afraid of the Devil . During an invasion of New York City in the 21st century , a Cerebravore used Hector ' s fear of the Devil against him . Hector believed that the Devil came for him because he knew his sins . ( COMIC : " Revolutions of Terror " ) Origins of the myths . Several beings and groups were a possible source for the idea of Satan . The Dæmon s , a horned race from the planet Dæmos , were believed by the Third Doctor to be the inspiration for Satan based on their experiments on humanity . ( TV : " The Dæmons " ) Likewise , the Demoniac s were another species believed to have influenced human society . ( PROSE : " Mean Streets " ) The Greek Immortal Hades , a supposed lord of the underworld , was also known to call himself Satan . ( PROSE : " Deadly Reunion " ) The Fourth Doctor believed that Sutekh had called himself several names , including Satan . ( TV : " Pyramids of Mars " ) The Beast said that he was the origin of , if not the actual Satan , and all similar entities on all worlds . ( TV : " The Impossible Planet " / " The Satan Pit " ) The Tenth Doctor found the Beast , in particular his claim to have existed before the universe , a challenge to his own belief system . ( TV : " The Satan Pit " ) He did eventually refer to the Beast as " the devil " . ( TV : " Planet of the Ood " ) Mistaken identity . On other occasions , entities were mistaken for Satan accidentally . When Momus stole Joan of Arc from Earth , she believed it was a trick of the Devil . ( PROSE : " The Lonely Computer " ) In 1140 , the Krillitane in Worcester were thought to be the Devil . ( PROSE : " The Krillitane Storm " ) In 1588 , the Vituperon posed as the Devil . ( AUDIO : " The Devil ' s Armada " ) In 1928 , when Angelo Colasanto learned of Jack Harkness ' immortality , he thought he was the Devil . He was captured and killed repeatedly , though some thought he was a miracle instead of the Devil . ( TV : " Immortal Sins " ) In 1930 , a Hooverville resident called a Dalek that appeared above the settlement " a devil in the sky " . ( TV : " Evolution of the Daleks " ) When Fitzroy contacted Bryn Williams and tried to make a deal with him in 2009 , Bryn assumed it was the Devil . ( AUDIO : " The Devil and Miss Carew " ) In his speech to the Clerics in which he told them that the Eleventh Doctor was a living breathing man , Colonel Manton said that the Doctor was not , among other things , the Devil . ( TV : " A Good Man Goes to War " )