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Tom Baker
The Doctor / Narrator
Lalla Ward
Romana
David Brierley
K-9 (voice)
Christopher Neame
Skagra
Denis Carey
Professor Chronotis
Daniel Hill
Chris Parsons
Victoria Burgoyne
Clare Keightley
Gerald Campion
Wilkin
Derek Pollitt
Dr. Caldera
Shirley Dixon
The Ship (voice)
John Hallet
Police Constable
David Strong
Passenger
Graham Cole
Krarg
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