Doctor Who Doctor's nature, somewhere between the twelfth and final incarnation. On rare occasions, other actors have stood in for the lead. In "The Five Doctors", Richard Hurndall played the First Doctor due to William Hartnell's death in 1975; 34 years later David Bradley similarly replaced Hartnell in "Twice Upon a Time". In "Time and the Rani", Sylvester McCoy briefly played the Sixth Doctor during the regeneration sequence, carrying on as the Seventh. For more information, see the list of actors who have played the Doctor. In other media, the Doctor has been played by various other actors, including Peter Cushing in
Doctor Who: The First Doctor Adventures These three actors also appeared alongside Bradley in the aforementioned BBC bio-drama. James Dreyfus joins the cast as an earlier incarnation of The Master prior to Roger Delgado. Announced in September 2017, The first pair of stories released on 25 December 2017, with a second pair due in July 2018. Confirmed in July 2018, a third duo will be released for January 2019. <section begin=series1 /><section end=series1 /> <section begin=series2 /><section end=series2 /> <section begin=series3 /><section end=series3 /> Doctor Who: The First Doctor Adventures The First Doctor Adventures is a Big Finish Productions audio play series based on the British