| Person | Type | Job | Role(s) |
|---|---|---|---|
 Albert DeMond | Crew | Writing | Story |
 Alfred L. Werker | Crew | Directing | Director |
Aubrey Schenck | Crew | Production | Producer |
 Ben Nye | Crew | Costume & Make-Up | Makeup Artist |
 Boris Leven | Crew | Art | Art Direction |
David Buttolph | Crew | Sound | Original Music Composer |
Eugene Ling | Crew | Writing | Screenplay |
Glen MacWilliams | Crew | Camera | Director of Photography |
Harmon Jones | Crew | Editing | Editor |
Joseph MacDonald | Crew | Camera | Director of Photography |
Kay Nelson | Crew | Costume & Make-Up | Costume Design |
 Lyle R. Wheeler | Crew | Art | Art Direction |
Martin Berkeley | Crew | Crew | Additional Dialogue |
Thomas Little | Crew | Art | Set Decoration |
Frances C. Richardson | Crew | Production | Researcher |
 Anabel Shaw | Cast | Actress | Mrs. Janet Stewart |
 Charles Tannen | Cast | Actor | Hotel Clerk |
 Charles Trowbridge | Cast | Actor | Dr. Franklin Harvey |
 Frank Latimore | Cast | Actor | Lt. Paul Stewart |
 George E. Stone | Cast | Actor | Cab Driver |
 Harry Carter | Cast | Actor | Sanitarium Orderly |
 John Davidson | Cast | Actor | Mr. Edwards |
 Lynn Bari | Cast | Actress | Nurse Elaine Jordan |
 Mary Young | Cast | Actress | Mrs. Penny |
 Pierre Watkin | Cast | Actor | Blake - Belmont Arms Hotel Manager |
 Reed Hadley | Cast | Actor | District Attorney O'Neill |
Renee Carson | Cast | Miss Hatfield - Head Nurse | |
 Robert Adler | Cast | Actor | Frank - Male Nurse |
 Ruth Clifford | Cast | Actress | Mrs. Margaret Cross |
 Ruth Nelson | Cast | Actress | Mrs. Margaret Cross (voice) |
 Selmer Jackson | Cast | Actor | Dr. Blair |
 Stephen Dunne | Cast | Actor | Dr. Stevens (as Michael Dunne) |
 Vincent Price | Cast | Actor | Dr. Richard Cross |
| Person | Type | Job | Role(s) |
