Full Credits
16 members

Boris Karloff
David Mallory

Warren Hull
Jim Travers

Jean Rogers
Joan Mallory

Alan Baxter
John Baron aka The Kid

Hobart Cavanaugh
Petty Louie

Samuel S. Hinds
Steven Ranger

David Oliver
Mike Callahan

Ward Bond
Fingers

Frank Reicher
Carl - gang engineer

Edwin Maxwell
Lawyer Kruger

George Cleveland
Sam Adams - Company Engineer (uncredited)
Ruth Fallows
Waitress (uncredited)

George Humbert
Mr. Spinelli (uncredited)
Nina Campana
Mrs. Spinelli (uncredited)

Charles C. Wilson
Police Capt. Wallace (uncredited)

Chuck Hamilton
Policeman (uncredited)
24 members
Lloyd Corrigan
Director
Jack Moffitt
Screenplay
Tristram Tupper
Screenplay
William A. Pierce
Story
Robert Presnell Sr.
Producer
George Robinson
Director of Photography
Arthur Morton
Music
Karl Hajos
Music
David Raskin
Music
Edward Ward
Music
Jesse Bastian
Sound
Gilbert Kurland
Sound Supervisor
Charles Maxwell
Music
Clifford Vaughan
Music
Charles Previn
Music
Jess Moulin
Sound
Heinz Roemheld
Music
Franz Waxman
Music
Jack Otterson
Art Direction
Loren Patrick
Art Direction
Jack Pierce
Makeup Artist
John P. Fulton
Visual Effects
Otis Garrett
Editor
John P. Fulton
Special Effects