| Jim Douglas | 迪恩·琼斯
 | |
| Wheely Applegate | 唐·诺茨
 | |
| Diane Darcy | 朱丽叶·索玛斯
 | |
| Inspector Bouchet | Jacques Marin | |
| Quincey | Roy Kinnear | |
| Max | Bernard Fox | |
| Bruno Von Stickle | 艾瑞克·布里登
 | |
| Detective Fontenoy (as Xavier Saint Macary) | Xavier Saint-Macary | |
| Monsieur Ribeaux | Fran?ois Lalande | |
| Emile (Chief Inspector of France) | Alan Caillou | |
| Duval (diamond guard) | Laurie Main | |
| Claude | Mike Kulcsar | |
| Race official | Johnny Haymer | |
| Taxi driver | Stanley Brock | |
| Waiter | 杰拉尔·朱诺
 | |
| Doorman | Jean-Marie Proslier | |
| Showroom M.C. (as Tom McCorry) | Tom McCorrey | |
| Mechanic | Lloyd Nelson | |
| Truck driver | Jean-Jacques Moreau | |
| Girl friend (as Yveline Briere) | Yveline Brière | |
| French tourist (as Sebastien Floche) | Sébastien Floche | |
| Old woman | Madeleine Damien | |
| Man at cafe | Alain Janey | |
| Police captain | Raoul Delfosse | |
| Exhibit M.C. | Ed Marcus | |
| Driver (as Richard Warlock) | Dick Warlock | |
| Driver (as Gerald Brutsche) | Jerry Brutsche | |
| Driver | Kevin Johnston | |
| Driver | Bob Harris | |
| Driver | Carey Loftin | |
| Driver | Jesse Wayne | |
| Driver | Bill Erickson | |
| Driver (as Reg Parton) | Regis Parton | |
| (uncredited) | 乔丝安·巴拉思科 | |
