Cast

Boris Karloff

Valdar

Margaret Lindsay

Helene von Lorbeer

Bruce Lester

Frank Bennett

Leonard Mudie

James Yeats

Holmes Herbert

Arthur Bennett

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Austin Fairman

George Bennett

William Bailey

British Intelligence Agent

Louise Brien

Miss Risdon - Bennett's Secretary

Glen Cavender

Under Officer Pfalz

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David Cavendish

Capt. Lanark

Crew

Terry O. Morse

Director (Directing)

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Lee Katz

Screenplay (Writing)

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Anthony Paul Kelly

Theatre Play (Writing)

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Thomas Pratt

Editor (Editing)