Cast
- Hugh Beaumont as Dennis O'Brien
- Edward Brophy as 'Professor' Frederick Simpson Schicker
- Richard Travis as Inspector Bruger
- Joan Valerie as Irma Rand
- Wanda McKay as Sylvia Rand
- Rebel Randall as Gail Chase
- William Tannen as Ed Gannon
- Greg McClure as Steve Belzig - alias Vic Lundy
- Anthony Warde as Bill Rafferty
- Abner Biberman as Eddie Paige
Crew
- William Berke · Director
- Julian Harmon · Writer
- Victor West · Writer
- Lou Morheim · Writer
- Herb Margolis · Writer
- William Berke · Producer
- Bert Shefter · Composer
- Jack Greenhalgh · Cinematographer
- Carl Pierson · Editor
- Harry Reynolds · Editor