 | Richard Benjamin als William Alren |
 | Joanna Shimkus als Lisa Alren |
 | Elizabeth Ashley als Nan |
 | Adam West als Chester |
 | Patricia Barry als Dr. Sadler |
 | Tiffany Bolling als Girl in the Rain |
 | Ed Prentiss als Mr. Franklin |
 | William Forrest als Mr. Wylie |
| Johnny Scott Lee als Mark |
| Bill McConnell als Charlie McGuire |
| Alma Beltran als Raquel |
 | Norman Leavitt als Mr. Van Meter |
 | Ron Masak als 1st Baseball Fan |
 | Bob Hastings als 2nd Baseball Fan |
| Kenneth Snell als Cab Driver |
 | Jeffrey Sayre als Man in the Bar (uncredited) |
| Lawrence Turman | Director |
| Lorenzo Semple Jr. | Screenplay |
| Charles Webb | Novel |
| László Kovács | Cinematography |
| Fred Karlin | Music |
| Fredric Steinkamp | Associate Producer |
| Lawrence Turman | Producer |
| Fredric Steinkamp | Editor |
| Pato Guzman | Production Design |
| Audrey A. Blasdel | Set Decoration |
| Walter M. Scott | Set Decoration |
| Allan Snyder | Makeup Artist |
| Dorothy White | Hairstylist |
| Saul Wurtzel | Unit Production Manager |
| Al Murphy | Second Assistant Director |
| David Salven | Assistant Director |
| Miles Tilton | Assistant Director |
| Harold Michelson | Production Illustrator |
| Bill MacSems | Assistant Property Master |
| Dennis J. Parrish | Property Master |
| Theodore Soderberg | Sound |
| Barry Thomas | Sound |
| Don Parker | Sound Recordist |
| Ronald L. Stirling | Boom Operator |
| Don B. Courtney | Special Effects |
| Richmond L. Aguilar | Gaffer |
| Cleo Anton | Script Supervisor |
| Bill Ross | Assistant Editor |
| Doris Rambeau | Wardrobe Master |
| Ed Wynigear | Wardrobe Master |
| Fred Richter | Grip |
| Lou London | Grip |
| Dave Friedman | Still Photographer |
| Dick Colean | Assistant Camera |
| George Hill | Key Grip |
