Full Cast
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Peter Cushing
Dr. Victor Stein
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Francis Matthews
Dr. Hans Kleve
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Eunice Gayson
Margaret Conrad
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Michael Gwynn
Karl
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John Welsh
Bergman
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Lionel Jeffries
Fritz
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Oscar Quitak
Dwarf
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Richard Wordsworth
Up Patient
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John Stuart
Inspector
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Michael Ripper
Kurt
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Charles Lloyd Pack
President
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Arnold Diamond
Molke
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Marjorie Gresley
Countess Barscynska
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Anna Walmsley
Vera Barscynska
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George Woodbridge
Janitor
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Ian Whittaker
Boy
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Avril Leslie
Girl
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John Tatham
Manservant (uncredited)
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Eugene Leahy
Kleine (uncredited)
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Charles Gilliard
Policeman (uncredited)
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Jimmy Charters
Patient (uncredited)
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Julia Nelson
Inga (uncredited)
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Robert Brooks Turner
Joseph the Groom (uncredited)
