| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bernhard Kaun | Crew | Sound | Music |
F. Hugh Herbert | Crew | Writing | Screenplay |
 H. Bruce Humberstone | Crew | Directing | Director |
Jack Okey | Crew | Art | Art Direction |
 Leo F. Forbstein | Crew | Sound | Conductor |
 Orry-Kelly | Crew | Costume & Make-Up | Costume Design |
Rian James | Crew | Writing | Writer |
Robert N. Lee | Crew | Writing | Screenplay |
 S.S. Van Dine | Crew | Writing | Novel |
 Terry O. Morse | Crew | Editing | Editor |
 Tony Gaudio | Crew | Crew | Cinematography |
Leslie G. Hewitt | Crew | Sound | Sound |
Martha Ocher | Crew | Costume & Make-Up | Hair Designer |
 Arthur Aylesworth | Cast | Actor | Trainor - Stamm's Butler |
Bruce Mitchell | Cast | Actor | Commander (uncredited) |
 Charles C. Wilson | Cast | Actor | Det. Hennessey |
Cliff Saum | Cast | Actor | Det. Burke (uncredited) |
 Dorothy Tree | Cast | Actress | Ruby Steele |
Eddie Shubert | Cast | Actor | Detective (uncredited) |
Eric Wilton | Cast | Actor | Currey - Vance's Butler (uncredited) |
 Etienne Girardot | Cast | Actor | Dr. Doremus - Coroner |
 Eugene Pallette | Cast | Actor | Sgt. Ernest Heath |
 George E. Stone | Cast | Actor | Ken Tatum |
 George Meeker | Cast | Actor | Monty Montague |
 Helen Lowell | Cast | Actress | Mother Stamm |
 Lyle Talbot | Cast | Actor | Gale Leland |
Margaret Lindsay | Cast | Actress | Bernice Stamm |
 Milton Kibbee | Cast | Actor | Service Station Attendant (uncredited) |
 Robert Barrat | Cast | Actor | Rudolph Stamm |
 Robert McWade | Cast | Actor | District Attorney Markham |
 Robert Warwick | Cast | Actor | Dr. Halliday |
 Sam McDaniel | Cast | Actor | Steam Room Attendant (uncredited) |
 Warren William | Cast | Actor | Philo Vance |
 Wilfred Lucas | Cast | Actor | Police Sergeant (uncredited) |
 William B. Davidson | Cast | Actor | Greeff |
| Person | Type | Job | Role(s) |
