| Person | Type | Job | Role(s) |
|---|---|---|---|
 Albert DeMond | Crew | Writing | Screenplay |
Arthur L. Todd | Crew | Camera | Director of Photography |
 Bryan Foy | Crew | Production | Associate Producer |
Charles Novi | Crew | Art | Art Direction |
Frederick Nebel | Crew | Writing | Characters |
 Hal B. Wallis | Crew | Production | Executive Producer |
Harold McLernon | Crew | Editing | Editor |
Howard Jackson | Crew | Sound | Original Music Composer |
Howard Shoup | Crew | Costume & Make-Up | Costume Design |
 Jack L. Warner | Crew | Production | Executive Producer |
 Leo F. Forbstein | Crew | Sound | Music Director |
Warren Lynch | Crew | Camera | Director of Photography |
 William Beaudine | Crew | Directing | Director |
Marshall Hageman | Crew | Directing | Assistant Director |
Lincoln Lyons | Crew | Sound | Sound |
Alice Connors | Cast | Newspaper Office Worker (uncredited) | |
 Barton MacLane | Cast | Actor | Detective Steve McBride |
 Bob Reeves | Cast | Actor | Man at Station (uncredited) |
Cliff Saum | Cast | Actor | Police Officer O'Brien (uncredited) |
 Edward Keane | Cast | Actor | Henchman Stoneham (uncredited) |
 Edward Raquello | Cast | Actor | Henchman Gonzales (uncredited) |
Edwin Rochelle | Cast | Racetrack Spectator (uncredited) | |
 Frank Reicher | Cast | Actor | The Professor - Henchman |
 Frank Shannon | Cast | Actor | Police Captain McTavish (uncredited) |
 George Guhl | Cast | Actor | Desk Sergeant Graves |
 Glenda Farrell | Cast | Actress | Torchy Blane |
 Greta Meyer | Cast | Actress | Mrs. Schmidt (uncredited) |
 Herbert Rawlinson | Cast | Actor | Tom Brennan |
Jack A. Goodrich | Cast | Actor | Bettor (uncredited) |
 Jack Mower | Cast | Actor | Police Officer Shane (uncredited) |
Jack Wise | Cast | Actor | Laughing Bystander (uncredited) |
Joe Cunningham | Cast | Actor | Maxie |
 John Harron | Cast | Actor | John Wilkins (uncredited) |
 John Ridgely | Cast | Actor | Henchman Bugs |
Loia Cheaney | Cast | Actress | Marie - Gang Moll (uncredited) |
 Nat Carr | Cast | Actor | Mr. Schmidt (uncredited) |
 Stuart Holmes | Cast | Actor | Bettor on #9 (uncredited) |
 Thomas E. Jackson | Cast | Actor | Henchman Gloomy (as Tommy Jackson) |
 Tom Kennedy | Cast | Actor | Gahagan |
 Vera Lewis | Cast | Actress | Woman at Schmidt's Pet Store (uncredited) |
 Willard Robertson | Cast | Actor | Charles Gilbert |
| Person | Type | Job | Role(s) |
