| Person | Type | Job | Role(s) |
|---|---|---|---|
 Francis Van Wyck Mason | Crew | Writing | Story |
 George Waggner | Crew | Writing | Screenplay |
Harry Neumann | Crew | Camera | Director of Photography |
 Joseph H. Lewis | Crew | Directing | Director |
 Ben Alexander | Cast | Actor | Capt. Don Mayhew |
 Carl Stockdale | Cast | Actor | Firing Range Officer (uncredited) |
 Carleton Young | Cast | Actor | Polo Game Timekeeper (uncredited) |
 Carlyle Moore Jr. | Cast | Actor | Cavalry Officer Playing Polo (uncredited) |
 Don Barclay | Cast | Actor | Private Timothy O'Reilly |
 Eddie Gribbon | Cast | Actor | Sergeant Who Threatens Mayhew (uncredited) |
 Eddie Parker | Cast | Actor | Reporter (uncredited) |
 Egon Brecher | Cast | Actor | General A. R. Bowen |
 Esther Ralston | Cast | Actress | Jean Bruce (as Jane Carleton) |
 Forrest Taylor | Cast | Actor | G-2 Sergeant (uncredited) |
 Frances Robinson | Cast | Actress | Girl at Officer's Club Dinner (uncredited) |
 Glenn Strange | Cast | Actor | The 'Champ' (uncredited) |
 Harry Harvey | Cast | Actor | Reporter (uncredited) |
 Harry Woods | Cast | Actor | Capt. Holden |
 Jack Mulhall | Cast | Actor | Capt. Tex Randolph |
 Jane Wyman | Cast | Actress | Elaine Burdette |
 John Ridgely | Cast | Actor | Spy Ring Member (uncredited) |
 LeRoy Mason | Cast | Actor | Paul Douglas |
 Leon Ames | Cast | Actor | Frank Denton |
 Lester Dorr | Cast | Actor | Firing Range Radio Operator (uncredited) |
 Pat Gleason | Cast | Actor | Reporter (uncredited) |
 Paul Sutton | Cast | Charley (Spy-Ring Chauffeur) | |
 Phillip Trent | Cast | Actor | Capt. Robert Scott |
 Robert Warwick | Cast | Actor | Col. Burdette |
 William Hall | Cast | Capt. Todd Hayden | |
| Person | Type | Job | Role(s) |
