Trailer
Images
 | Gregory Peck as David Stillwell |
 | Diane Baker as Shela |
 | Walter Matthau as Ted Caselle |
 | Robert H. Harris as Dr. Broden |
 | Kevin McCarthy as Sylvester Josephson |
 | Leif Erickson as The Major |
 | Walter Abel as Charles Stewart Calvin |
 | George Kennedy as Willard |
 | Jack Weston as Lester |
 | Anne Seymour as Frances Calvin |
 | House Jameson as Bo |
 | Hari Rhodes as Lt. Franken |
 | Syl Lamont as Benny |
 | Eileen Baral as Irene |
| Neil Fitzgerald as Joe Turtle |
 | Franklin Cover as Group Leader |
 | Don Anderson |
 | Bill Baldwin |
| Al Beaudine |
| Roxane Berard |
 | Robert Brubaker |
| Toni Covington |
| John Crowther |
| Robert Dahdah |
 | Ann Doran as Tenant in Apartment 3R (uncredited) |
 | Jerry Dunphy |
 | Douglas Evans |
| Harry Fleer |
 | Rian Garrick |
 | Gerald Gordon |
 | Damian O'Flynn as Bar Patron (uncredited) |
| John Pedrini |
 | Barbara Perry as Office worker (uncredited) |
| Murray Pollack as Detective (uncredited) |
 | Bill Quinn as Eddie - Bartender (uncredited) |
| Allan Ray |
 | Walter Reed as Reporter (uncredited) |
| Victor Romito |
| George Simmons |
| Ann Staunton |
| Bert Stevens |
| Robert Swan as Police Sergeant (uncredited) |
 | Aline Towne as Dr. Broden's Receptionist (uncredited) |
 | Howard Wendell |
 | Myron Healey as Bar Patron Discussing Watermelon (voice) (uncredited) |
| Directing | |
| Edward Dmytryk | Director |
Editing | |
| Ted J. Kent | Editor |
Camera | |
| Joseph MacDonald | Director of Photography |
Writing | |
| Peter Stone | Screenplay |
| Howard Fast | Novel |
Production | |
| Harry Keller | Producer |
Crew | |
| Buddy Van Horn | Stunts |
Sound | |
| Quincy Jones | Original Music Composer |
Art | |
| Frank Arrigo | Art Direction |
| Alexander Golitzen | Art Direction |
| John P. Austin | Set Decoration |
| John McCarthy Jr. | Set Decoration |
Costume & Make-Up | |
| Jean Louis | Costume Design |
| Larry Germain | Hairstylist |
| Bud Westmore | Makeup Artist |
