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