| Person | Type | Job | Role(s) |
|---|---|---|---|
 Aubrey Wisberg | Crew | Writing | Screenplay |
Dwight Caldwell | Crew | Editing | Editor |
Eric Taylor | Crew | Writing | Story, Screenplay |
Hans Radon | Crew | Art | Art Direction |
Henry Freulich | Crew | Camera | Director of Photography |
Howard Fogetti | Crew | Sound | Sound |
Max Marcin | Crew | Writing | Characters |
Philip Tannura | Crew | Camera | Director of Photography |
Rudolph C. Flothow | Crew | Production | Producer |
 William Castle | Crew | Directing | Director |
William Kiernan | Crew | Art | Set Decoration |
Carl Hiecke | Crew | Directing | Assistant Director |
 Adele Roberts | Cast | Actress | Claire Foster (as Adelle Roberts) |
Brick Sullivan | Cast | Actor | Policeman (uncredited) |
 Byron Foulger | Cast | Actor | Harris, Makeup Man (uncredited) |
 Charles Arnt | Cast | Actor | Attorney Allen S. Tobin (uncredited) |
 Charles D. Brown | Cast | Actor | Insp. Burns |
 Charles Lane | Cast | Actor | Dr. Steiner (uncredited) |
 Craig Reynolds | Cast | Actor | Jack Swayne (uncredited) |
 Egon Brecher | Cast | Actor | Dr. Evans (uncredited) |
Eric Wilton | Cast | Actor | Party Guest (uncredited) |
 George Meeker | Cast | Actor | Walter Foster (uncredited) |
 Irene Tedrow | Cast | Actress | Nurse Florence White (uncredited) |
Jack Deery | Cast | Actor | Party Guest (uncredited) |
 Martin Kosleck | Cast | Actor | Karl Ganss |
 Marvin Miller | Cast | Actor | Casper |
 Peggy Converse | Cast | Actress | Connie Day (uncredited) |
 Robert Barrat | Cast | Actor | Clyde Travers (as Robert H. Barrat) |
 Skelton Knaggs | Cast | Actor | Louie (uncredited) |
 Thomas E. Jackson | Cast | Actor | Walter Cummings (uncredited) |
 Walter Soderling | Cast | Actor | Tobin's Servant (uncredited) |
 Warner Baxter | Cast | Actor | Dr. Robert Ordway |
 Wilton Graff | Cast | Actor | Alexander 'Alec' Girard (uncredited) |
 Mona Barrie | Cast | Actress | Harriet Travers |
 Ted Hecht | Cast | Actor | Armand Morcel (uncredited) |
| Person | Type | Job | Role(s) |
