| Person | Type | Job | Role(s) |
|---|---|---|---|
 Arthur Morton | Crew | Sound | Music |
Charles Maxwell | Crew | Sound | Music |
Charles Previn | Crew | Sound | Music |
Clifford Vaughan | Crew | Sound | Music |
Edward Ward | Crew | Sound | Music |
 Franz Waxman | Crew | Sound | Music |
George Robinson | Crew | Camera | Director of Photography |
Gilbert Kurland | Crew | Sound | Sound Supervisor |
Heinz Roemheld | Crew | Sound | Music |
Jack Moffitt | Crew | Writing | Screenplay |
Jack Otterson | Crew | Art | Art Direction |
 Jack Pierce | Crew | Costume & Make-Up | Makeup Artist |
John P. Fulton | Crew | Crew | Special Effects, Visual Effects |
Karl Hajos | Crew | Sound | Music |
 Lloyd Corrigan | Crew | Directing | Director |
Otis Garrett | Crew | Editing | Editor |
Robert Presnell Sr. | Crew | Production | Producer |
Tristram Tupper | Crew | Writing | Screenplay |
William A. Pierce | Crew | Writing | Story |
David Raskin | Crew | Sound | Music |
Jess Moulin | Crew | Sound | Sound |
Jesse Bastian | Crew | Sound | Sound |
Loren Patrick | Crew | Art | Art Direction |
 Alan Baxter | Cast | Actor | John Baron aka The Kid |
 Boris Karloff | Cast | Actor | David Mallory |
 Charles C. Wilson | Cast | Actor | Police Capt. Wallace (uncredited) |
 David Oliver | Cast | Actor | Mike Callahan |
 Edwin Maxwell | Cast | Actor | Lawyer Kruger |
 Frank Reicher | Cast | Actor | Carl - gang engineer |
 George Cleveland | Cast | Actor | Sam Adams - Company Engineer (uncredited) |
 George Humbert | Cast | Actor | Mr. Spinelli (uncredited) |
 Hobart Cavanaugh | Cast | Actor | Petty Louie |
 Jean Rogers | Cast | Actress | Joan Mallory |
Nina Campana | Cast | Actress | Mrs. Spinelli (uncredited) |
Ruth Fallows | Cast | Waitress (uncredited) | |
 Samuel S. Hinds | Cast | Actor | Steven Ranger |
 Ward Bond | Cast | Actor | Fingers |
 Warren Hull | Cast | Actor | Jim Travers |
 Chuck Hamilton | Cast | Actor | Policeman (uncredited) |
| Person | Type | Job | Role(s) |
