The Doctor (Doctor Who)
Jodie Whittaker took over the role as the Thirteenth Doctor in the 2017 Christmas special. In addition to the above-listed actors, others have played versions of the Doctor for the duration of particular storylines.
Notably, John Hurt guest starred as the War Doctor in the closing moments of the 2013 episode "The Name of the Doctor", the webcast "The Night of the Doctor" and the 50th Anniversary episode "The Day of the Doctor". The War Doctor is an incarnation existing between those of McGann and Eccleston. Hurt was never the programme's lead actor; his Doctor was retroactively inserted into continuity for the programme's 50th anniversary, and was written so as not to disturb the ordinal naming of the established Ninth, Tenth and Eleventh Doctors. In the 1986 serial "The Trial of a Time Lord", Michael Jayston played the Valeyard, an amalgamation of the Doctor's darker sides from between his twelfth and final incarnations.
Doctor Who (series 11)
On 8 March 2018, Alan Cumming announced that he had been cast as King James I in an episode of the series. On 25 March, comedian Lee Mack stated that he would make a brief appearance in one episode. Shaun Dooley also appears in the series. In a "Coming Soon" vignette during the closing credits of the premiere episode, "The Woman Who Fell to Earth", a number of guest actors appearing in the remaining episodes of the series were shown: Mark Addy, Julie Hesmondhalgh, Shane Zaza, Shobna Gulati, Brett Goldstein, Josh Bowman, Siobhan Finneran, Lois Chimimba, Susan Lynch, Hamza Jeetooa (credited as Hamza Jeetoa), Art Malik, Suzanne Packer, Vinette Robinson, Amita Suman, Ben Bailey Smith, Phyllis Logan, and Chris Noth.