| Person | Type | Job | Role(s) |
|---|---|---|---|
 Adele Palmer | Crew | Costume & Make-Up | Costume Supervisor |
Allen Alperin | Crew | Art | Set Decoration |
Bob Mark | Crew | Costume & Make-Up | Makeup Supervisor |
Dorrell McGowan | Crew | Writing | Screenplay, Associate Producer |
Hans J. Salter | Crew | Sound | Music |
Hilyard M. Brown | Crew | Art | Art Direction |
Howard Lydecker | Crew | Crew | Special Effects |
John McCarthy Jr. | Crew | Art | Set Decoration |
 Philip Ford | Crew | Directing | Director |
Reggie Lanning | Crew | Camera | Director of Photography |
Royal K. Cole | Crew | Writing | Original Story |
Sherman L. Lowe | Crew | Writing | Original Story |
Stuart E. McGowan | Crew | Writing | Screenplay, Associate Producer |
Theodore Lydecker | Crew | Crew | Special Effects |
William P. Thompson | Crew | Editing | Editor |
Richard Cherwin | Crew | Sound | Music Director |
Edward H. Plumb | Crew | Sound | Original Music Composer |
Fred Stahl | Crew | Sound | Sound |
 Charles Cane | Cast | Actor | Chief Inspector Ryan |
 Charles Trowbridge | Cast | Actor | Dr. Rufus Maynard |
 Earle Hodgins | Cast | Actor | Fred Mays (Fred Murks) |
 Ian Keith | Cast | Actor | Ormond Murks |
 LeRoy Mason | Cast | Actor | Detective Hendricks |
 Lorna Gray | Cast | Actress | Nurse Susan Drake |
 Robert Livingston | Cast | Actor | Dr. Terrance 'Terry' Evans |
Russ Clark | Cast | Actor | Officer Lacy |
 Thomas E. Jackson | Cast | Actor | Detective Blair |
 Wheaton Chambers | Cast | Actor | Coroner (uncredited) |
 William Haade | Cast | Actor | Police Officer 'Tiny' |
 Wilton Graff | Cast | Actor | Dr. Lucifer Garland |
 Chuck Hamilton | Cast | Actor | Officer Joe - The Driver |
| Person | Type | Job | Role(s) |
