Cast

John Bentley

Superintendent Wills

Patrick Allen

Dr. Nelson Pollard

Jacqueline Ellis

Elsa Marlowe

Wilfrid Brambell

Lock-Keeper

John Glyn-Jones

Dr. Maurice Tarn

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Jane Murdoch

Honeymoon Wife

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Brian McDermott

Det. Sgt. Stillman

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Gerald Andersen

Major Paul Amery

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Edward Atienza

Clerk

Ric Young

Johnny Choto

Crew

Clive Donner

Director (Directing)

Robert Banks Stewart

Writer (Writing)

Edgar Wallace

Novel (Writing)

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Jack Greenwood

Producer (Production)

Jim O'Connolly

Associate Producer (Production)

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Charles Blackwell

Original Music Composer (Sound)

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Bert Mason

Cinematography (Crew)

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Derek Holding

Editor (Editing)

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Peter Mullins

Art Direction (Art)

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Ronnie Curtis

Casting Director (Production)