In this epic two-part finale, the Doctor comes face to face with the mysterious Missy, and an impossible choice is looming. With Cybermen on the streets of London, old friends unite against old enemies, and the Doctor takes to the air in a startling new role.
The Doctor (12)
Clara Oswald
Missy
Danny Pink
Seb
Kate Lethbridge-Stewart
Osgood
Cyberman
Cyberman (voice)
Woman
Gran
Dr Chang
Fleming
Boy
Mr. Armitage
Colonel Ahmed
Teenage Boy
Teenage Girl
Graham
Santa Claus
The Doctor (11) (archive footage) (uncredited)
