 | Charles Grodin als Howard R. Chesser |
 | Candice Bergen als Maren Shirell |
 | James Mason als Charles D. Watts |
 | Trevor Howard als Clyde Massey |
 | John Gielgud als Meecham |
 | Helen Cherry als Lady Anne Bolding |
 | Peter Vaughan als Coglin |
 | Cyril Shaps als Wildenstein |
 | Leon Greene als Max Toland |
 | Jack Watson als Miller |
 | Jack Watling als Fitzmaurice |
 | Clive Morton als Sir Harold |
 | Larry Cross als Whitman |
 | Glynn Edwards als First Guard |
 | John Bindon als Second Guard |
| Joe Powell als Hickey |
| Michael Gover als Doctor |
 | Michael Hawkins als Patient |
| Patricia Michael als Stewardess |
| Aram Avakian | Director |
| Jeffrey Bloom | Screenplay |
| Gerald A. Browne | Novel |
| Charles Grodin | Adaptation |
| Anne V. Coates | Editor |
| Elliott Kastner | Producer |
| Denis Holt | Associate Producer |
| Michael J. Lewis | Music |
| Peter Mullins | Art Direction |
| Jack Stephens | Set Decoration |
| Biddy Chrystal | Hairdresser |
| Basil Newall | Makeup Artist |
| David W. Orton | Production Supervisor |
| Jack Causey | Assistant Director |
| Anthony Squire | Second Unit Director |
| Raymond Becket | Second Assistant Director |
| Mike Higgins | Second Assistant Director |
| Richard Jenkins | Second Assistant Director |
| Derek Kavanagh | First Assistant Director |
| John Siddall | Art Department Manager |
| Jonathan Bates | Sound Editor |
| Danny Daniel | Sound Recordist |
| Gordon K. McCallum | Sound Recordist |
| John Hayward | Sound Mixer |
| Austin Partridge | Sound |
| Roy Whybrow | Special Effects |
| Joe Powell | Stunts |
| Freddie Cooper | Camera Operator |
| Robin McDonald | Second Assistant Camera |
| Arthur Ibbetson | Director of Photography |
| Vic Armstrong | Stunts |
