Cast

Anton Diffring

Dr. Erik Leichner

William Sylvester

Vince Warren

Justine Lord

Diane Graydon

Martin Miller

Schroeder

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Tony Garnett

Brennan

Warren Mitchell

Chemist

Philip Locke

Foster

Jacqueline Jones

Vanessa Palmer

Geoffrey Palmer

Dr. Tanfield

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Sylva Langová

Vivienne Leichner

Crew

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Norman Harrison

Director (Directing)

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Jack Greenwood

Producer (Production)

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Ronnie Curtis

Casting Director (Production)

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Arthur La Bern

Screenplay (Writing)

Edgar Wallace

Original Story (Writing)

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James Wilson

Director of Photography (Camera)

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Derek Holding

Editor (Editing)

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Peter Mullins

Art Direction (Art)

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Pat McDermott

Hairdresser (Costume & Make-Up)

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Michael Morris

Makeup Artist (Costume & Make-Up)