Doctor Who: The Deadly Assassin 1976

Summoned back to Gallifrey, the Doctor is framed for the assassination of the Time Lord President. To prove his innocence, he must stand for election himself, uncover the traitor in the Time Lord High Council, fight a hooded killer in a nightmare cyberspace world of his enemy's devising and battle against an old foe now out to destroy the Time Lords: The Master.

Cast

Tom Baker

Bernard Horsfall

Peter Pratt

Llewellyn Rees

Hugh Walters

Angus MacKay

George Pravda

Erik Chitty

Derek Seaton

Maurice Quick

John Dawson

Michael Bilton