Cast

Bela Lugosi

Dr. Alex Zorka / Dr. Zane

Robert Kent

Capt. Bob West

Dorothy Arnold

Jean Drew

Edwin Stanley

Dr. Fred Mallory

Regis Toomey

Lt. Jim Daly

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Jack C. Smith

Monk

Edward Van Sloan

Jarvis

Dora Clement

Ann Zorka

Anthony Averill

Rankin

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Hugh Huntley

Perkins

Crew

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Saul A. Goodkind

Director (Directing)

Ford Beebe

Director (Directing)

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Wyllis Cooper

Story (Writing)

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George H. Plympton

Screenplay (Writing)

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Basil Dickey

Screenplay (Writing)

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Mildred Barish

Screenplay (Writing)