Doctor Who: The First Doctor Adventures Doctor Who: The First Doctor Adventures The First Doctor Adventures is a Big Finish Productions audio play series based on the British television programme "Doctor Who". It sees the return of David Bradley as the First Doctor, a role originated by William Hartnell from 1963 to 1966, as well as by Bradley on television in the episodes "The Doctor Falls" and "Twice Upon a Time". David Bradley also portrayed William Hartnell in the BBC bio-drama, "An Adventure in Space and Time". Also appearing are Claudia Grant as Susan Foreman, Jemma Powell as Barbara Wright and Jamie Glover as Ian Chesterton.
The Sixth Doctor: The Last Adventure of "Time and the Rani", but due to the firing between seasons of Sixth Doctor actor Colin Baker, the episode gave the event very little screen time and didn't explain what had caused it. Big Finish Productions producer David Richardson approached Baker in 2014, after seeing "The Time of the Doctor", which had depicted (on television) the regeneration of the Eleventh Doctor into the Twelfth: "I felt very strongly that regeneration stories, and each Doctor’s final end, are very important to "Doctor Who" fans – these are stories that allow us to see the Doctor at his most courageous, making