The Eighth Doctor is on Doctor What.
 The Doctor sacrifices himself and the TARDIS by absorbing anti-time energy, which seals the rift and preserves Charley's life but transforms him into the bogeyman Zagreus
 The Doctor was specifically sent to times and places that would undermine him  discovering he had upset the course of Grace Holloway's life in 2001, encountering an alien race with motivations uncomfortably similar to his which caused death and horror in 17th Century Japan, and almost killing the benevolent Kroton by mistake

