 | Lucille Bremer als Kathy Lawrence |
 | Richard Carlson als Ross Stewart |
 | Douglas Fowley als Larson |
 | Ralf Harolde als Fred Hopps |
 | Thomas Browne Henry als Dr. Clifford Porter |
 | Herbert Heyes als Judge Finlay Drake |
 | Gwen Donovan als Madge Bennett |
 | Trevor Bardette als Mr. Purvis - a Patient (uncredited) |
 | Morgan Farley als Mental patient (uncredited) |
 | Kathleen Freeman als Nurse (uncredited) |
 | Dickie Moore als Mental patient (uncredited) |
 | Tor Johnson als 'The Champ', a patient (uncredited) |
 | John Holland als Dr. J.R. Bell (uncredited) |
| Tony Horton als Trooper Captain (uncredited) |
 | Wally Vernon als Maintenance Man (uncredited) |
| Budd Boetticher | Director |
| Eugene Ling | Screenplay |
| Malvin Wald | Screenplay |
| Malvin Wald | Story |
| Eugene Ling | Producer |
| Guy Roe | Director of Photography |
| Norman Colbert | Editor |
| Edward L. Ilou | Art Direction |
| Albert Glasser | Music |
| Armor Marlowe | Set Decoration |
| Al Orenbach | Set Decoration |
| Del Armstrong | Makeup Artist |
| Joan St. Oegger | Hairstylist |
| Helen Turpin | Hairstylist |
| Ern Westmore | Makeup Artist |
| James T. Vaughn | Production Supervisor |
| Emmett Emerson | Assistant Director |
| Leon Becker | Sound |
| Robert Pritchard | Sound |
| George J. Teague | Visual Effects |
| Lee Davis | Camera Operator |
| Milton Gold | Still Photographer |
| Charles Rose | Grip |
| France Ehren | Costume Supervisor |
| Irving Friedman | Music Director |
| Richard Walton | Script Supervisor |
| Burk Symon | Dialogue Coach |
