Cast
- Marten Lamont as Jerry Blake
- Helen Talbot as Joyce Kingston
- George J. Lewis as Jim Belmont
- Lorna Gray as Rita Parker
- Hal Taliaferro as Matt Farrell
- LeRoy Mason as Morton [Chs. 1, 9-10]
- William Stevens as Agent Fred Martin
- Maurice Cass as Signor Giuseppe Morello [Ch. 11]
- Kernan Cripps as Agent Thomas Jeffries [Ch. 1]
- Elaine Lange as Countess Delremy [Ch. 1]
Crew
- Spencer Gordon Bennet · Director
- Yakima Canutt · Director
- Richard Cherwin · Director
- Wallace Grissell · Director
- Albert DeMond · Writer
- Basil Dickey · Writer
- Jesse Duffy · Writer
- Joseph F. Poland · Writer
- Ronald Davidson · Producer
- Bud Thackery · Cinematographer
- Cliff Bell Sr. · Editor
- Harold Minter · Editor