Cult of Skaro The Cult of Skaro was a " secret order " of four Dalek s , thought to be merely a legend by the Tenth Doctor . They were " above and beyond the Emperor himself " and designed to " think as the enemy thinks " . ( TV : " Doomsday " ) History . Purpose . The Cult of Skaro were assigned the task of furthering the Dalek cause through the development of new and unorthodox ideas and strategies . Dalek Sec claimed that it was created to " imagine new ways of survival " . ( TV : " Daleks in Manhattan " ) Their willingness to adopt alien modes of thought was demonstrated by the fact that they had individual names , a concept most Daleks found abhorrent . Led by Sec , the Black Dalek , they answered to no one , not even the Dalek Emperor , although they still revered him . ( TV : " Doomsday " ) Origins . The Cult of Skaro were at first just four ordinary Daleks . Dalek Sec was a commander of the Seventh Incursion Squad sent to wipe out the remnants of the Mechanoid s which they succeeded in doing . Dalek Caan was an Attack Squad Leader of the Thirteenth Assault Group . Dalek Thay was the commandant of Station Alpha , the most secret Dalek research facility . Dalek Jast was a Force Leader of the Outer Rim Defensive Battalion . After doing this all four of them were promoted to become the Cult of Skaro . They were given their names — making them some of the only Daleks with names — and Dalek Sec was chosen to be their leader . ( PROSE : " Birth of a Legend " ) Survival . They were a secret order who were to think like their enemies in order to destroy them , although their original purpose was to imagine new ways of survival . During the Last Great Time War , they operated as a final strategic reserve . Rather than fighting , they escaped into the space between universes , along with what they called the Genesis Ark , a piece of Time Lord technology . Having left the universe , they were not caught in the destruction of the Dalek fleet . ( TV : " Army of Ghosts " / " Doomsday " , " Daleks in Manhattan " , " The Day of the Doctor " ) Conflict with the Cybermen . The Torchwood Institute ' s meddling began to open the barrier to the Void which had been broken down by the Cult ' s Void ship . Torchwood Tower , known to the public as Canary Wharf , had been built around the gap into the Void so that Torchwood One could study it and use its energy . When the Void Ship opened , the Cult exited the ship and declared war — or " pest control " — against the Cybermen that had invaded Earth from Pete ' s World , leading to the Battle of Canary Wharf . They then opened the Genesis Ark and released " millions " of Daleks onto England . All these Daleks were sucked into the void along with the Cybermen , by the Tenth Doctor ' s intervention . The Cult escaped before being returned to the void , by using an emergency temporal shift . ( TV : " Doomsday " ) In New York City . After using the temporal shift , the Cult ended up in New York City in 1930 . They infiltrated the construction of the Empire State Building and began what they called the " Final Experiment " — the creation of a new Dalek race . ( TV : " Daleks in Manhattan " / " Evolution of the Daleks " ) Inside the sewers below the Empire State Building , they set up a genetic laboratory and attempted to create new Dalek embryos . After the failure of this experiment , they tried thinking creatively , as the Cult was designed to . They devised a plan using Earth ' s greatest resource — its people . They placed Dalekanium upon the mast of the Empire State Building , intending to fuse the DNA of Daleks and humans using an incoming ray of gamma radiation from the sun . Dalek Sec tested this on Mr Diagoras , becoming a " human Dalek " hybrid , now with human thoughts and emotions . Dalek Sec wanted the Dalek - humans ' to keep their human emotions , but the other Daleks , although bred to obey Sec , believed that this was against the Dalek cause . They so changed the DNA to 100 % Dalek and imprisoned Dalek Sec . Dalek Sec was later exterminated accidentally after the other Cult members fired their gunstick s at the Doctor . The Doctor got in the way of the blast of gamma radiation and so infused the DNA with some of his own . The humans rebelled and killed Dalek Thay and Dalek Jast , before being killed themselves . The Doctor offered to help Dalek Caan — the last surviving Dalek — but instead of taking it , Caan used an emergency temporal shift to escape once more . ( TV : " Evolution of the Daleks " ) Caan was eventually able to penetrate the time lock on the Last Great Time War , from which he rescued Davros from his doomed command ship . Caan , however , became insane during his successful attempt at rescuing Davros . He came to view the Daleks negatively , and set in motion a chain of events that would destroy the New Dalek Empire . Caan , the last remaining member of the Cult of Skaro , was presumed killed when the Crucible was destroyed . ( TV : " The Stolen Earth " / " Journey ' s End " ) Members of the Cult of Skaro . Dalek Caan , Dalek Sec , Dalek Thay and Dalek Jast were members of the Cult of Skaro . ( TV : " Doomsday " )