Cast

Boris Karloff

Dr. Victor Sartorius

Joan Wyndham

Eve Rowe

Arthur Margetson

Roger Clifford

Mona Goya

Yvonne Clifford

Anthony Ireland

Capt. Arthur Halliday

Morton Selten

Sir Charles Clifford

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Nina Boucicault

Mary Clifford

Gibb McLaughlin

Jacques

J.H. Roberts

Chalmers

Victor Rietti

Doctor Bousquet

Crew

Henry Edwards

Director (Directing)

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Cyril Campion

Screenplay (Writing)

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H. Fowler Mear

Screenplay (Writing)

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Heinrich Fraenkel

Adaptation (Writing)

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Michael C. Chorlton

Editor (Editing)

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James A. Carter

Art Direction (Art)

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Julius Hagen

Producer (Production)

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Edward L. Alperson

Executive Producer (Production)

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William Luff

Director of Photography (Camera)

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Sydney Blythe

Director of Photography (Camera)