 | Jeffrey Hunter Jim Grayam |
 | Anne Francis Lorrie Benson |
 | Dana Andrews Cort Benson |
 | Viveca Lindfors Dr. Elizabeth Larstadt |
 | Stacy Harris Josh Reynolds |
 | Kathie Browne Angie DeWitt |
 | Phillip Pine Dr. Ames |
 | Michael Pate Dr. Mills |
 | Robert McQueeney Sgt. Dawes |
 | Strother Martin Mr. Clyde |
 | Joan Swift Clara |
| George Pelling Butler |
 | Victoria Paige Meyerink Julie Benson |
| Stephen Roberts Judge |
| Pat Cardi Bobby |
| Leon Alton Spectator (uncredited) |
| Tom Anfinsen Party Guest (uncredited) |
| David Armstrong Party Guest (uncredited) |
 | Frank Baker Executive (uncredited) |
 | Harry Bartell Detective (uncredited) |
| Suzanne Benoit Nurse (uncredited) |
 | Steve Carruthers Executive (uncredited) |
| James J. Casino Party Guest (uncredited) |
| Donald Chaffin Orderly (uncredited) |
 | William Conrad Mental Patient (uncredited) |
 | Roberto Contreras Asylum Inmate (uncredited) |
 | Isabel Cooley Nurse (uncredited) |
| George DeNormand Attorney (uncredited) |
 | Barbara Dodd Party Guest (uncredited) |
 | William Duffy Orderly (uncredited) |
 | Biff Elliot Detective (uncredited) |
| Joe Evans Inmate (uncredited) |
 | Pamelyn Ferdin Little Girl in Lobby (uncredited) |
| Fred Fisher Party Guest (uncredited) |
| Duke Fishman Inmate (uncredited) |
| Jimmie Horan Party Guest (uncredited) |
 | Steve Ihnat Dr. Copeland (uncredited) |
 | Byron Keith Guard (uncredited) |
 | Kenner G. Kemp Courtroom Spectator (uncredited) |
| Johnny Kern Party Guest (uncredited) |
 | Richard Kiel Asylum Inmate (uncredited) |
 | Lloyd Kino Mr. Komato (uncredited) |
| Robert Locke Lorraine Party Guest (uncredited) |
| Elaine Martone Party Guest (uncredited) |
 | Charles Maxwell Insane Man in Courtroom (uncredited) |
| William Meader Party Guest (uncredited) |
 | Joseph Mell Insane Inmate with Flowers (uncredited) |
 | John Mitchum Guitar-Playing Inmate (uncredited) |
 | Ray Montgomery Charlie the Gate Guard (uncredited) |
 | George N. Neise Party Guest (uncredited) |
 | Monty O'Grady Executive (uncredited) |
 | James O'Hara Party Guest (uncredited) |
| Bill Quinn Psychiatrist at Sanity Hearing (uncredited) |
| Paul Ravel Inmate (uncredited) |
| Anthony Redondo Reporter (uncredited) |
| Victor Rodman Asylum Inmate (uncredited) |
 | John Roy Spectator (uncredited) |
| Wendy Russell Party Guest (uncredited) |
 | Jeffrey Sayre Lawyer (uncredited) |
 | James Seay Judge at Scavenger Hunt (uncredited) |
| Alfred Shelly Detective (uncredited) |
 | Hal Taggart Man at Sanity Hearing (uncredited) |
| Julie Van Zandt Mother (uncredited) |
| Maurice Wells Judge (uncredited) |
| Directing | |
| William Conrad | Director |
Editing | |
| William H. Ziegler | Editor |
Production | |
| William Conrad | Producer |
Camera | |
| Sam Leavitt | Director of Photography |
Costume & Make-Up | |
| Jean Burt Reilly | Hair Supervisor |
Production | |
| James T. Vaughn | Unit Manager |
Sound | |
| George Duning | Original Music Composer |
Art | |
| Robert Emmet Smith | Art Direction |
| Hoyle Barrett | Set Decoration |
Costume & Make-Up | |
| Gordon Bau | Makeup Supervisor |
Writing | |
| Mann Rubin | Screenplay |
| Lawrence B. Marcus | Story |
