Director: Peter Grimwade
Tom Baker
The Doctor
Matthew Waterhouse
Adric
Sarah Sutton
Nyssa
Janet Fielding
Tegan Jovanka
Anthony Ainley
The Master
Delore Whiteman
Aunt Vanessa
Tom Georgeson
Detective Inspector
John Fraser
The Monitor
Christopher Hurst
Security Guard
Adrian Gibbs
The Watcher (uncredited)
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