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.
Tom Baker
as The Doctor
Bernard Horsfall
as Chancellor Goth
Peter Pratt
as The Master
Llewellyn Rees
as The President
Hugh Walters
as Commentator Runcible
Angus MacKay
as Cardinal Borusa
George Pravda
as Castellan Spandrell
Erik Chitty
as Co-Ordinator Engin
Derek Seaton
as Commander Hilred
Maurice Quick
as Gold Usher
John Dawson
as Time Lord
Michael Bilton
as Time Lord
