| Person | Type | Job | Role(s) |
|---|---|---|---|
 A.J. Gilmore | Crew | Art | Set Decoration |
Alex Gottlieb | Crew | Production | Producer |
Arthur Hilton | Crew | Editing | Editor |
Bernard B. Brown | Crew | Sound | Sound Director |
Charles Henderson | Crew | Sound | Music |
Charles Previn | Crew | Sound | Music, Music Director |
Charles Van Enger | Crew | Camera | Director of Photography |
Don Raye | Crew | Sound | Music |
Edmund Joseph | Crew | Writing | Screenplay |
 Erle C. Kenton | Crew | Directing | Director |
 Frank Skinner | Crew | Sound | Music |
Hans J. Salter | Crew | Sound | Music |
Howard Christie | Crew | Directing | Assistant Director |
Jack Otterson | Crew | Art | Art Direction |
John Grant | Crew | Writing | Screenplay |
Milton Rosen | Crew | Sound | Music |
Pat Costello | Crew | Crew | Stunt Double |
 Richard Hageman | Crew | Sound | Music |
 Robert F. Boyle | Crew | Art | Art Direction |
Russell A. Gausman | Crew | Art | Set Decoration |
Sam Perry | Crew | Sound | Music |
Sonny Burke | Crew | Sound | Music |
Stanley Roberts | Crew | Writing | Screenplay, Story |
Vera West | Crew | Costume & Make-Up | Costume Design |
Hugh Prince | Crew | Sound | Music |
 Alice Fleming | Cast | Mrs. Laffingwell, dowager telephoning Moscow | |
Antonio Pina | Cast | Acrobat (uncredited) | |
 Billy Wayne | Cast | Actor | Jake, man telephoning Alaska |
 Bobby Barber | Cast | Actor | Test Technician in Booth (uncredited) |
 Bud Abbott | Cast | Actor | Chick Larkin |
 Crane Whitley | Cast | Actor | Radio Actor (uncredited) |
 Don Porter | Cast | Actor | 'Murder at Midnight' program manager |
 Eddie Bruce | Cast | Bill, man telephoning Brazil | |
 Edmund MacDonald | Cast | Actor | 'Murder at Midnight' Announcer |
 Edward Keane | Cast | Actor | Man in drug store touting Juliet (uncredited) |
 Frank McLure | Cast | Actor | Acrobatic Show Spectator (uncredited) |
 Gene O'Donnell | Cast | Radio Actor (uncredited) | |
 Gladys Blake | Cast | Actress | Telephone Operator |
 Harry Strang | Cast | Actor | Truck Driver (uncredited) |
 Jerome Cowan | Cast | Actor | Heller |
Jerry Frank | Cast | Customer (uncredited) | |
 Lou Costello | Cast | Actor | Mervin Q. Milgrim |
 Louise Allbritton | Cast | Actress | Jane Little |
 Ludwig Stössel | Cast | Actor | Dr. Anton Marek |
 Margaret Brayton | Cast | Radio Actress (uncredited) | |
 Mary Wickes | Cast | Actress | Juliet Collins |
 Milton Parsons | Cast | Actor | Coroner (cameo) |
 Patric Knowles | Cast | Actor | Jim Turner |
 Paul Dubov | Cast | Actor | Radio Actor (uncredited) |
 Thomas Gomez | Cast | Actor | Col. J.R. Andrews |
 Walter Tetley | Cast | Actor | 'Shorty', a studio pageboy |
 William Bendix | Cast | Actor | Detective Sgt. Brannigan |
 William Gargan | Cast | Actor | Detective Inspector Lou |
George Ford | Cast | Actor | Station Employee (uncredited) |
 Chuck Hamilton | Cast | Actor | Policeman (uncredited) |
 Duke York | Cast | Actor | Attendant with the Coroner (uncredited) |
 Joe Kirk | Cast | Actor | Harry, 'Murder At Midnight' sound man |
 Norman Abbott | Cast | Actor | 'Murder at Midnight' Organist |
Frank Penny | Cast | Spinelli (uncredited) | |
Joseph La Cava | Cast | Actor | Station Employee (uncredited) |
Buddy Twiss | Cast | Announcer (uncredited) | |
Jerry Pina | Cast | Acrobat (uncredited) | |
Jenaro Pina | Cast | Acrobat (uncredited) | |
Henry Pina | Cast | Acrobat (uncredited) | |
Abel Pina | Cast | Acrobat (uncredited) | |
Ed Emerson | Cast | Announcer (uncredited) | |
| Person | Type | Job | Role(s) |
