Cast

Jeffrey Hunter

Captain Bill Ranson

Annemarie Düringer

Rolande Hertog

Nigel Patrick

Major Julien Howard

David Kossoff

Dr. Mulder

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Rolf Lefebvre

Hans Faber, chief spy

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Larry Burns

Martins, building porter-spy

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Anthony Ostrer

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Claude Kingston

Willem Mulder

Robert Raglan

Lt. Miller

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Peter Prouse

Sgt. Bill Parrish

Crew

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Victor Vicas

Director (Directing)

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David Pursall

Writer (Writing)

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Jack Seddon

Writer (Writing)

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Barry Wynne

Novel (Writing)