The pair are seen either side of the Doctor (Peter Capaldi) as they put their own chilling spin on the iconic poster image that previously accompanied Doctor Who’s 50th anniversary special, The Day of the Doctor.
Simm will return to Doctor Who as the Master for the first time since New Year’s Day 2010, when he was responsible for the regeneration of the Tenth Doctor. This time the Master will come face-to-face with Missy, his later regeneration, and battle the Doctor during the series’ two part finale which begins next weekend.
The episodes will also feature the return of the Cybermen - including the original Mondasian Cybermen, for the first time in over 50 years - plus Bill Potts (Pearl Mackie) and Nardole (Matt Lucas) in an epic adventure that will change Doctor Who forever.
Doctor Who’s series finale begins with episode 11, World Enough and Time, at 6:45pm on Saturday 24 June on BBC One. It concludes on Saturday 1 July with episode 12, The Doctor Falls – an extended, 60 minute episode.