Top Cast
Jon Pertwee
The Doctor
Katy Manning
Jo Grant
Roger Delgado
The Master
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Vera Fusek
President of Earth
Michael Hawkins
General Williams
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Peter Birrel
Draconian Prince
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Lawrence Davidson
Draconian First Secretary (uncredited)
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Timothy Craven
Cell guard (uncredited)
Ray Lonnen
Gardiner
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Barry Ashton
Kemp
