Second Doctor
The Second Doctor is an incarnation of the Doctor, the protagonist of the BBC science fiction television series "Doctor Who". He was portrayed by character actor Patrick Troughton.
List of companions in Doctor Who spin-offs
Tom mistook Dr. Who's time machine, Tardis, for a real police telephone box while attempting to foil a jewel robbery. He accompanied Dr. Who, together with the Doctor's niece Louise and granddaughter Susan, to the year 2150, where they discovered that the Daleks had invaded Earth. After helping to defeat the Daleks, Dr. Who returned him to London a few minutes before the robbery was due to take place, enabling him to catch the thieves. The temporal paradox created by this action is not addressed in the film. Cribbins later played Wilfred Mott from 2007 to 2010 in the revived "Doctor Who" television series.