Doctor Who

Cast Roles: X

Xana (Belinda Lee in Dragonfire: Part Two)
Xanxia (Queen) (Vi Delmar in The Pirate Planet: Part Three)
Xeron (9 episodes, e.g. Bill Starkey in The Space Museum: The Search)
Xiaolian (Daphne Cheung in The Pyramid At The End Of The World)
Xmas Eve Drunk (Jason Weeks in The End of Time: Part One)
Xmas Eve Office Workers (3 episodes, e.g. Robert Price in The End of Time: Part One)
Xmas Eve Passer (7 episodes, e.g. Victoria Alderwick in The End of Time: Part One)
Xoanon (9 episodes, e.g. Rob Edwards in The Face of Evil: Part Two)