The Doctor (Doctor Who)
The Doctor is the title character in the long-running BBC science fiction television programme "Doctor Who". Since the show's inception in 1963, the character has been portrayed by thirteen lead actors. In the programme, "the Doctor" is the alias assumed by a centuries-old alien—a Time Lord from the planet Gallifrey—who travels through space and time in the TARDIS, frequently with companions. The transition to each succeeding actor is explained within the show's narrative through the plot device of "regeneration", a biological function of the Time Lord race that allows a change of cellular structure and appearance with recovery following a potentially fatal injury.
Doctor Who (series 1)
The first series of "Doctor Who" featured eight scripts by Davies, the remainder being allocated to experienced drama writers and previous writers for the show's ancillary releases: Steven Moffat penned a two-episode story, while Mark Gatiss, Robert Shearman, and Paul Cornell each wrote one script. Davies also approached his friend Paul Abbott and "Harry Potter" author J. K. Rowling to write for the series, but both declined due to existing commitments. Shortly after securing writers for the show, Davies stated that he had no intention to approach writers for the old series; the only writer he would have wished to work with was Robert Holmes, who died in May 1986, halfway through writing his contribution to "The Trial of a Time Lord".