Cast

Christopher Lee

J.D. Morley

Boris Karloff

Professor John Marsh

Mark Eden

Robert Manning

Virginia Wetherell

Eve Morley

Barbara Steele

Lavinia Morley

Michael Gough

Elder

Roger Avon

Sergeant Tyson (uncredited)

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Michael Warren

Chauffeur (uncredited)

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Rosemarie Reede

Esther

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Denys Peek

Peter Manning (uncredited)

Crew

Vernon Sewell

Director (Directing)

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Henry Lincoln

Screenplay (Writing)

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Mervyn Haisman

Screenplay (Writing)

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Tony Tenser

Executive Producer (Production)

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Louis M. Heyward

Producer (Production)

H.P. Lovecraft

Novel (Writing)

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Derek Barrington

Art Direction (Art)

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Michael Southgate

Costume Design (Costume & Make-Up)

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Gerry Levy

Associate Producer (Production)

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Peter Knight

Original Music Composer (Sound)