Directed by
| Alfred L. Werker | ... | (as Alfred Werker) |
Writing Credits
| Eugene Ling | ... | (screenplay) |
| Albert DeMond | ... | (story) (as Albert deMond) |
| Martin Berkeley | ... | (additional dialogue) |
Cast (in credits order) verified as complete
| Vincent Price | ... | Dr. Richard Cross | |
| Lynn Bari | ... | Nurse Elaine Jordan | |
| Frank Latimore | ... | Lt. Paul Stewart | |
| Anabel Shaw | ... | Mrs. Janet Stewart | |
| Stephen Dunne | ... | Dr. Stevens (as Michael Dunne) | |
| Reed Hadley | ... | District Attorney O'Neill | |
 |
Renee Carson | ... | Miss Hatfield - Head Nurse |
| Charles Trowbridge | ... | Dr. H.J. Harvey | |
| Rest of cast listed alphabetically: | |||
| Robert Adler | ... | Frank - Male Nurse (uncredited) | |
|
|
Margaret Brayton | ... | Nurse (uncredited) |
| Harry Carter | ... | Sanitarium Orderly (uncredited) | |
| Ruth Clifford | ... | Mrs. Margaret Cross (uncredited) | |
| John Davidson | ... | Mr. Edwards (uncredited) | |
| Selmer Jackson | ... | Dr. Blair (uncredited) | |
| Ruth Nelson | ... | Mrs. Margaret Cross (uncredited) | |
|
|
Claire Richards | ... | Nurse (uncredited) |
| George E. Stone | ... | Cab Driver (uncredited) | |
| Charles Tannen | ... | Hotel Clerk (uncredited) | |
| Pierre Watkin | ... | Blake - Belmont Arms Hotel Manager (uncredited) | |
|
|
Cecil Weston | ... | Patient (uncredited) |
| Mary Young | ... | Mrs. Penny (uncredited) | |
Produced by
| Aubrey Schenck | ... | producer |
Music by
| David Buttolph | ||
Cinematography by
| Joseph MacDonald | ... | director of photography (as Joe MacDonald) |
| Glen MacWilliams | ... | director of photography |
Editing by
| Harmon Jones | ||
Art Direction by
| Boris Leven | ||
| Lyle R. Wheeler | ... | (as Lyle Wheeler) |
Set Decoration by
| Thomas Little | ||
Costume Design by
| Kay Nelson | ||
Makeup Department
| Ben Nye | ... | makeup artist |
Second Unit Director or Assistant Director
| Eli Dunn | ... | assistant director (uncredited) |
Art Department
| O. Clemont Halverson | ... | associate set decorator |
| Don B. Greenwood | ... | property master (uncredited) |
Sound Department
| Alfred Bruzlin | ... | sound |
| Harry M. Leonard | ... | sound |
Visual Effects by
| Fred Sersen | ... | special photographic effects |
| Sol Halperin | ... | transparencies (uncredited) |
| Edwin Hammeras | ... | transparencies (uncredited) |
| J.O. Taylor | ... | transparencies (uncredited) |
Camera and Electrical Department
| Irving Rosenberg | ... | camera operator (uncredited) |
Music Department
| Arthur Morton | ... | orchestrator |
| Emil Newman | ... | musical director |
| Paul Neal | ... | music mixer (uncredited) |
| Murray Spivack | ... | music mixer (uncredited) |
Additional Crew
| Edna Brophy | ... | technical advisor (uncredited) |
| Maude Clague | ... | research assistant (uncredited) |
| Frances C. Richardson | ... | research director (uncredited) |
