Cast

Patrick Wymark

Inspector Holloway

Margaret Johnston

Mrs. Von Sturm

John Standing

Mark Von Sturm

Alexander Knox

Frank Saville

Judy Huxtable

Louise Saville

Don Borisenko

Donald Loftis

Thorley Walters

Martin Roth

Robert Crewdson

Victor Ledoux

Colin Gordon

Dr. Glyn

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Tim Barrett

Morgan

Crew

Freddie Francis

Director (Directing)

Robert Bloch

Writer (Writing)

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Max Rosenberg

Producer (Production)

Milton Subotsky

Producer (Production)

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Elisabeth Lutyens

Original Music Composer (Sound)

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John Wilcox

Director of Photography (Camera)

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Oswald Hafenrichter

Editor (Editing)

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Bill Constable

Art Direction (Art)

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Scott Slimon

Set Decoration (Art)

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Jill Carpenter

Makeup Artist (Costume & Make-Up)