| Person | Type | Job | Role(s) |
|---|---|---|---|
 Edward J. Kay | Crew | Sound | Music |
 George Waggner | Crew | Writing | Adaptation |
Gordon Bau | Crew | Costume & Make-Up | Makeup Artist |
Harry Neumann | Crew | Camera | Director of Photography |
Hugh Wiley | Crew | Writing | Characters |
Karl Zint | Crew | Sound | Sound Recordist |
Louis Brown | Crew | Costume & Make-Up | Costume Design |
Russell F. Schoengarth | Crew | Editing | Editor |
Scott Darling | Crew | Writing | Screenplay |
Scott R. Dunlap | Crew | Production | Producer |
W.B. Eason | Crew | Directing | Assistant Director |
 William Nigh | Crew | Directing | Director |
Allan Cavan | Cast | Actor | Radio Station Owner |
 Bert Moorhouse | Cast | Actor | Card Player |
 Boris Karloff | Cast | Actor | James Lee Wong |
 C.E. Anderson | Cast | Actor | Cap Anderson |
 Charles Trowbridge | Cast | Actor | John T. Forbes |
 Craig Reynolds | Cast | Actor | Frank Belden, Jr. |
 Donald Kerr | Cast | Actor | The Drunk |
 Elsa Janssen | Cast | Actress | Hotel Maid |
 Frank Puglia | Cast | Actor | Harry 'Hardway' Lockett |
 Grant Withers | Cast | Actor | Capt. Bill Street |
 Harry Harvey | Cast | Actor | Radio Salesman |
 Harry Strang | Cast | Actor | Det. Ballard |
 Hooper Atchley | Cast | Actor | Frank Belden, Sr. |
 I. Stanford Jolley | Cast | Actor | Soapy |
Jack Kennedy | Cast | Actor | Mike |
 James C. Morton | Cast | Actor | Policeman Clancy |
 Jason Robards Sr. | Cast | Actor | Griswold |
 Lita Chevret | Cast | Actress | Tanya Serova |
 Marjorie Reynolds | Cast | Actress | Roberta 'Bobbie' Logan |
Nick Copeland | Cast | The Crank Informant | |
 Paul Scardon | Cast | Actor | Homer Lyons - Informant |
Pauline Drake | Cast | Bessie, Switchboard Operator | |
 Richard Loo | Cast | Actor | Jeweler |
 Tris Coffin | Cast | Actor | Hotel Desk Clerk |
 Wilbur Mack | Cast | Actor | Police Medical Examiner |
| Person | Type | Job | Role(s) |
