Victor Halperin
Director
Sigmund Neufeld
Producer
Harvey Huntley
Writer
Jack London
Story
George Wallace Sayre
Writer
Jack Greenhalgh
Director of Photography
Holbrook N. Todd
Editor
David Chudnow
Music Director
Fred Preble
Art Direction
Hans Weeren
Sound Engineer
Ben Judell
Producer
Lyle Talbot
Lt. Bob Bennett
Irving Pichel
Dr. Herbert Stander
Julie Bishop
Joan Martel
Sheila Bromley
Poison Mary Slavish
Anthony Averill
Dirk - Stander's Aide
Russell Hopton
Harry 'The Carver' Bogard
Julian Madison
Paul - Stander's Aide
Eddie Holden
Ole Olson
Wheeler Oakman
John Ritter
Stanley Blystone
Capt. Mike Briggs
Leander De Cordova
Ezra Matthews
Demetrius Alexis
Steve Murano
Skelton Knaggs
Jesse Bixel
Carleton Young
Reporter
William N. Chapman
Bill
Jack Gardner
Reporter
Adia Kuznetzoff
Adolph Krantz
Bert LeBaron
Sailor
Fred Walton
Dr. Beemish
