 | Jerry Lewis als Dr. Bernard Abrams |
 | Morgan Freeman als Dr. Sherard |
 | Jaclyn Bernstein als Felice Abrams |
 | Gerard Parkes als Father Robert Hunt |
 | Patty Duke als Shirley Abrams |
 | Barry Morse als Dr. Whalley |
 | James Bearden |
| Robert Benson als Dr. Keith |
 | Eve Crawford |
| Elliot Silverstein | Director |
| Thomas Nesi | Story |
| Thomas Nesi | Teleplay |
| Scott Nisor | Teleplay |
| Albert J. Dunk | Director of Photography |
| Leslie Dennis Bracken | Editor |
| Charles L. Dunlop | Production Design |
| Laurence Rosenthal | Original Music Composer |
| Charles W. Fries | Executive Producer |
| Irv Wilson | Executive Producer |
| Ian McDougall | Producer |
| Blanche McDermaid | Script Supervisor |
| Judith Holstra | Casting |
| Marcia Ross | Casting |
| Joyce Liggett | Set Decoration |
| Beverly Carr | Key Makeup Artist |
| Albert Paradis | Hairstylist |
| S. Bryan Hickox | Executive In Charge Of Production |
| Jesse Cohoon | Unit Manager |
| Claude Binyon Jr. | First Assistant Director |
| Izidore K. Musallam | Second Assistant Director |
| Thomas Nesi | Associate Producer |
| Ford Langevin | Camera Operator |
| Douglas Thane Stewart | Sound Mixer |
| David Flaherty | Location Manager |
| Mort Freedman | Property Master |
| Donald Vandewater | Construction Coordinator |
| Richard Stern | Scenic Artist |
| Robert Turturice | Wardrobe Designer |
| Gaye Gardiner | Wardrobe Coordinator |
| Howard Galbraith | Gaffer |
| Andrew Mulkani | Key Grip |
| Bruce Raymer | Transportation Coordinator |
| Paul Anderson | Assistant Editor |
| John Mick | Music Editor |
| John Fresco | Music Supervisor |
| Joan Stevenson | Production Controller |
| Sheena Graham | Production Coordinator |
| Rita Rokisky | Production Coordinator |
| Maureen Fitzgerald | Production Accountant |
| Joan McIntosh | Production Accountant |
| Karen Cohen | Production Accountant |
| Wendy Petrozzi | Production Secretary |
| Andrea Goodman | Production Secretary |
| Amy Paterson | Production Assistant |
| Cristi G. Hooper | Producer's Assistant |
| M.L. Tanner | Producer's Assistant |
