cast
- Richard Travis
- Tom Norman/Battick
- Helen Westcott
- Mary Lynn
- James Griffith
- Operative Dale
- Emory Parnell
- Capt. Roburt
- Richard Fraser
- Operative Farrell
- Ralf Harolde
- Steele
- Selmar Jackson
- Capt. Wright
- Gene Ross
- Ehrlich
- William Tannen
- Dajek
- Pierre Watkin
- Mr. Sigmund
- Otto Reichow
- Balser
- Paul Bryar
- Cmdr. Braddock
- William Haade
- Anorus
- Jason Robards, Sr.
- Dr. Loring
crew
- Jack Bernhard
- Director
- James S. Burkett
- Producer
- Arthur Hoerl
- Screenwriter
- Marcel Le Picard
- Cinematographer
- Charles Craft
- Editor
