Special Investigator

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Edwin L. Marin

Director

Wynne Gibson

Lynn Ashton

Onslow Stevens

Francis Scott Graham

William Collier Sr.

The Detective--Police Sgt. Melody

John Wray

Willie McGuire

Leon Ames

Clifford Mulford

Mischa Auer

DeCobra

Paul Fix

Engineer

James Flavin

Detective O'Shea

Richard 'Skeets' Gallagher

The Reporter--Miller

Alan Dinehart

Police Inspector Thomas

Warren Hymer

Sam Collins

Edward Van Sloan

Professor Franz Lubeck

J. Farrell MacDonald

The Doorman--Mike Costello

Barbara Weeks

Nora

Wade Boteler

Gerard

Walter Brennan

Ship's Officer

Doris Canfield

Kitty Collins

Arthur Hoyt

Wilson

Warren Duff

Writer

Gordon Kahn

Writer

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