The Deadly Assassin: Part Four is an episode of Doctor Who starring Tom Baker, George Pravda, and Bernard Horsfall. The Doctor realises the Master is planning to tap into the Time Lords' power source to extend his own life, an act...
Runtime: 50 minutes
Genre: Adventure, Drama, Family, Sci-Fi
Stars: Tom Baker, George Pravda, Bernard Horsfall, Peter Pratt
Director: David Maloney, Robert Holmes, Sydney Newman