 | Karen Black als Marian Rolf |
 | Oliver Reed als Ben Rolf |
 | Burgess Meredith als Arnold Allardyce |
 | Bette Davis als Aunt Elizabeth |
 | Eileen Heckart als Roz Allardyce |
 | Lee Montgomery als David 'Davey' Rolf |
 | Dub Taylor als Walker |
 | Joseph Riley als Ben's Father |
| Todd Turquand als Young Ben |
| Orin Cannon als Minister |
| Jim Myers als Dr. Ross |
 | Anthony James als The Chauffeur |
| Dennis Virkler | Editor |
| Dan Curtis | Producer |
| Bob Cobert | Original Music Composer |
| Dan Curtis | Screenplay |
| William F. Nolan | Screenplay |
| Dan Curtis | Director |
| Robert Marasco | Novel |
| Jacques R. Marquette | Director of Photography |
| Ann Roth | Costume Design |
| Peggy Shannon | Hairstylist |
| Solomon Brewer | Set Decoration |
| Cliff Wenger | Special Effects |
| Elliott Marks | Still Photographer |
| Al Fleming | Makeup Artist |
| Linda Otto | Casting |
| Alan Greedy | Script Supervisor |
| Don J. Bassman | Sound Re-Recording Mixer |
| Sven Walnum | Camera Operator |
| Robert A. Petzoldt | Gaffer |
| Graham Meech-Burkestone | Hairstylist |
| Eugène Lourié | Production Design |
