The Keys of Marinus is an episode of Doctor Who starring William Hartnell, William Russell, and Jacqueline Hill. The Doctor and his friends must locate the real murderers and the fourth key before heading off for a final...
Runtime: 50 minutes
Genre: Adventure, Drama, Family, Sci-Fi
Stars: William Hartnell, William Russell, Jacqueline Hill, Carole Ann Ford
Director: John Gorrie, Terry Nation, Sydney Newman