Cast

Leslie Banks

Capt. Hyde

Kay Walsh

Alison Devar

Mackenzie Ward

Newton Hulls

Cecil Parker

Cmdr. Herbert

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Simon Lack

Philip Hyde

Ellen Pollock

Margaret Hulls

Nigel Stock

Rudd

Kynaston Reeves

Prof Devar

Charles Eaton

Commander-in-Chief

Ian Fleming

Naval Intelligence Officer

Crew

Maurice Elvey

Director (Directing)

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Louis London

Production Manager (Production)

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Fred V. Merrick

Assistant Director (Directing)

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Gerald Elliott

Screenplay (Writing)

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Leo Wilkins

Sound (Sound)

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James A. Carter

Art Direction (Art)

Maurice Elvey

Screenplay (Writing)

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K.C. Alexander

Producer (Production)

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Harold Fletcher

Makeup Artist (Costume & Make-Up)

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D. William Woolf

Scenario Writer (Writing)