| Person | Type | Job | Role(s) |
|---|---|---|---|
 Clem Portman | Crew | Crew | Sound Recordist |
 Dorothy Yost | Crew | Writing | Writer |
 Edmund H. North | Crew | Writing | Writer |
Edward Killy | Crew | Directing | Director |
Jack Hively | Crew | Editing | Editor |
James Gow | Crew | Writing | Writer |
 Nicholas Musuraca | Crew | Camera | Director of Photography |
Stuart Palmer | Crew | Writing | Novel |
Thomas Lennon | Crew | Writing | Writer |
 Van Nest Polglase | Crew | Art | Art Direction |
William Hamilton | Crew | Directing | Director |
William Sistrom | Crew | Production | Associate Producer |
Samuel J. Briskin | Crew | Production | Executive Producer |
 Barlowe Borland | Cast | Actor | Pipe Expert (uncredited) |
 Christian Rub | Cast | Actor | Chris Thomas |
 Dewey Robinson | Cast | Actor | Turkish Bath Attendant (uncredited) |
 Frank Marlowe | Cast | Actor | Horseman on Bridle Path (uncredited) |
 Frank Mills | Cast | Actor | Horseman on Bridle Path (uncredited) |
 Frank Reicher | Cast | Actor | Dr. Peters (Gregg's) |
 Gustav von Seyffertitz | Cast | Actor | Doctor Bloom, Police Dept. |
 Harry Bowen | Cast | Actor | Second (Checker) Taxi Driver (uncredited) |
Harry Jans | Cast | Actor | Addie, Reporter |
 Helen Broderick | Cast | Actress | Hildegarde Withers |
 Jack Rice | Cast | Actor | Violet's Hotel Manager (uncredited) |
 James Donlan | Cast | Actor | Detective Kane |
 James Gleason | Cast | Actor | Police Insp. Oscar Piper |
 John Arledge | Cast | Actor | Joey Thomas |
 John Carroll | Cast | Actor | Latigo Wells |
 John Miltern | Cast | Actor | Patrick 'Pat' Gregg |
 Leslie Fenton | Cast | Actor | Don Gregg |
 Louise Latimer | Cast | Actress | Barbara Foley |
 Maurice Cass | Cast | Actor | Mr. Schultz, Handwriting Expert (uncredited) |
 Maxine Jennings | Cast | Actress | Girl in Waiting Car (uncredited) |
Monte Vandergrift | Cast | Detective Bart (uncredited) | |
 Murray Alper | Cast | Actor | Taxi Driver (uncredited) |
 Owen Davis Jr. | Cast | Actor | Edward 'Eddie' Fry |
 Sheila Terry | Cast | Actress | Violet Feverel |
 Spencer Charters | Cast | Actor | Warden Sylvester Mahoney |
 Tony Martin | Cast | Actor | Man with Violet (uncredited) |
 Willie Best | Cast | Actor | 'High-Pockets' |
 Mike Lally | Cast | Actor | Reporter (uncredited) |
| Person | Type | Job | Role(s) |
