Billie Piper, who was portrayed as Rose in the previous incarnation, is now taking over as the new sixteenth doctor. the new series is coming soon on BBC One and Disney+. • From the planet of Gallifrey comes a mysterious alien only known as "the Doctor". The Doctor travels in a Time/Space machine called the Tardis, an acronym that stands for Time And Relative Dimensions In Space; the machine would normall appear like a plain smooth box but wit hthe use of it's chamaleon circuit to blend into it's surroundings where it lands (anywhere in time or space) the Doctor's Tardis is stuck like a 60's Police Box. Through his travels he's battled Daleks, Cybermen, Autons and the Nestene Consciousness, a planet of Spiders, historical figures, Slitheen and even a megalomaniac computer who took on his likeness during his 4th life. Hundreds of baddies make up the list he's gone up against. There have been more than 16 Doctors.... the genius idea of the Doctor dying and regenerating enabled he show to be on so long. the previous doctor [the 15th] was portrayed by Ncuti Gatwa. the 13th Doctor was played by Jodie Whittaker. The original run was from 1963 to 1989, and then it returned for 2005 with a bigger budget, and a new actor, Christopher Eccleston, as the 9th incarnation of the Doctor. Along his travels he picks up friends, "companions" as fans call them; they act as the in between to ask the questions so the viewer understand what sort of technobabble the Doctor's going on about. Bad Wolf, with BBC Studios Productions, for Disney Branded Television and BBC One.