 | Chad Everett als Quentin Barnaby |
 | Anjanette Comer als Toby Collins |
 | Keith Barron als Jim Maxwell |
 | Joanne Dainton als Valerie Chrane |
 | Rupert Davies als Prentice |
 | James Hayter als Inspector Herman |
 | Robert Flemyng als Carlton |
 | Roy Kinnear als Roscoe |
 | Allan Cuthbertson als Jarvis |
 | John Loder als Routledge |
 | Pauline Peart |
 | Marianne Stone als Edwards |
| Ted Karnon | Sound Re-Recording Mixer |
| Masada Wilmot | Wardrobe Supervisor |
| Alan Hume | Cinematography |
| Lionel Selwyn | Editor |
| Cliff Culley | Special Effects |
| Jean Fairlie | Wardrobe Supervisor |
| Barry Delmaine | Associate Producer |
| Ray Frift | Production Manager |
| Denise Exshaw | Set Dresser |
| Jack Lowin | Camera Operator |
| Philip Levene | Writer |
| Julian Wintle | Producer |
| Douglas Luke | Still Photographer |
| Sidney Hayers | Director |
| Laurie Johnson | Music |
| Philip Levene | Associate Producer |
| Brian Blamey | Sound Editor |
| Robert T. MacPhee | Sound Recordist |
| Harry Pottle | Production Design |
| Gino Marotta | Assistant Director |
| Alan Hume | Director of Photography |
| Daphne Martin | Hairdresser |
| Stella Morris | Makeup Artist |
| George Hill | Construction Manager |
| Arnold Ross | Location Manager |
| Marjorie Lavelly | Continuity |
