Scaroth Scaroth , also known as Count Carlos Scarlioni and Captain Tancredi , was the last of the Jagaroth and the saviour of his species . He was also the pilot of the Jagaroth ship that landed on Earth in prehistoric times and concurred to the rise of life on the planet ; moreover , he claimed to have contributed to the technological development of the human race . Biography . Humanity . Roughly 400 million years BC , a Jagaroth ship piloted by Scaroth landed on Earth . Despite his ship ' s advice , he launched at Warp 3 ; the ship exploded , and in its control cabin , Scaroth was splintered in the time vortex . Twelve fragments of him were scattered across time , though they could communicate through telepathy . The explosion provided the radiation that the primordial soup needed for the human race to exist . Throughout time , his selves pushed the development of the human race forward so that his twelfth self would have the technology to go back in time to the moment of take - off , preventing his splintering in time as well as the death of his race . All of these incarnations , except for the Egypt ian self , who appeared as a god on one occasion , disguised themselves as humans using a mask and skin into which he was able to fit himself . ( TV : " City of Death " ) His Egyptian self was manipulated by the Osiran s to serve as a foreman in arranging the construction of the pyramid s . ( PROSE : " The Sands of Time " ) Captain Tancredi . In Florence , Italy in 1505 , Scaroth appeared as a human named Captain Tancredi . He convinced Leonardo da Vinci , a human painter , to paint six copies of his famous painting , the " Mona Lisa " . He stored them away for a later self to find . ( TV : " City of Death " ) Count Scarlioni . His twelfth self was Count Carlos Scarlioni , a well - known figure in the art world in 1979 . Thanks to him , genuine art works that had been missing for centuries started showing up . He was married to Countess Scarlioni , who never knew who he really was , thanks to little gifts every now and then and a little " excitement " . He also gave her a micromeson scanner and asked her to wear it always . Thanks to his other selves , he used the artwork to fund his experiments with time , run by Professor Fyodor Nikolai Kerensky . Having found the other six " Mona Lisas " , he planned to steal the one in the Louvre . He would then sell them to the seven people in the world who would pay anything for the " Mona Lisa " , and since the one from the Louvre would be stolen , each would think he had the original , and Scaroth would make a hundred million dollars off each painting . He met the Fourth Doctor and Romana II when they tried to find the crack in time that his experiments had caused . Romana was captured and made to build a field interphase stabiliser to make the artificial time field Scaroth had created stable , allowing him to travel back in time , as he threatened to destroy Paris if she didn ' t comply . Having been convinced by the Doctor , and having seen pictures of Scaroth ' s true form , the Countess turned against Scaroth . He used her bracelet to kill her . Scaroth travelled back in time to try to stop the explosion that splintered him across time ; although Romana had sabotaged the field so that it would only take him into the past for two minutes , that would be enough time for him to avert his past mistake . The Doctor got there first with Romana and Detective Duggan . After the Doctor failed to convince Scaroth to stand down on his own , Duggan knocked Scaroth unconscious . His time in the past then ended and he faded back to 1979 . When his servant Hermann saw his true form , he attacked Scaroth with a grenade , and Scaroth was destroyed along with his time field . ( TV : " City of Death " )