 | Cliff Robertson als David Ballard |
 | Jean Simmons als Dominique Ballard |
 | Jenny Agutter als Ann Ballard |
 | Simon Ward als Tony Calvert |
 | Ron Moody als Dr. Rogers |
 | Flora Robson als Mrs. Davis |
 | David Tomlinson als Attorney |
 | Judy Geeson als Marjorie Craven |
 | Michael Jayston als Arnold Craven |
 | Jack Warner |
 | Leslie Dwyer |
 | Erin Geraghty |
 | Jack McKenzie |
 | Michael Nightingale |
| Michael Anderson | Director |
| Harold Lawlor | Novel |
| Edward Abraham | Screenplay |
| Valerie Abraham | Screenplay |
| Ted Moore | Director of Photography |
| David Wynn-Jones | First Assistant Camera |
| Milton Subotsky | Producer |
| Andrew Donally | Producer |
| Melvin Simon | Executive Producer |
| David Whitaker | Original Music Composer |
| Richard Best | Editor |
| David Minty | Production Design |
| Douglas Hayward | Costumer |
| Wim Hemmink | Costumer |
| Bobbie Smith | Hairdresser |
| Tom Smith | Makeup Artist |
| Rufus Andrews | Production Manager |
| Terence Churcher | Assistant Director |
| Brian W. Cook | Assistant Director |
| Joe Dunne | Stunt Coordinator |
| Bill Cook | Boom Operator |
| David Bowen | Sound Recordist |
| Alfred Cox | Sound Editor |
| Bob Jones | Sound Recordist |
| David Allen | Sound |
| John Godfrey | Construction Manager |
| Jedd Dale | Standby Property Master |
| Peter Dunlop | Property Buyer |
| Ray Perry Sr. | Standby Property Master |
| Brian Savegar | Set Dresser |
| Bob Spencer | Scenic Artist |
| Mike Roberts | Camera Operator |
| George Boner | Gaffer |
| Ken Bray | Still Photographer |
| Ray Hall | Grip |
| Hugh Johnson | Clapper Loader |
| Ronnie Rampton | Electrician |
| Les Weighell | Electrician |
| Bridget Sellers | Wardrobe Supervisor |
| Norman Dickens | Wardrobe Supervisor |
| Valerie Lesser | First Assistant Editor |
| Richard James | Assistant Editor |
| Ann Skinner | Continuity |
| Dennis Davidson | Publicist |
