| 角色 | 饰演者介绍 |
| Peter Joshua / Carson Dyle / Alexander Dyle / Adam Canfield / Brian Cruikshank | 加里·格兰特 |
| Regina Lampert | 奥黛丽·赫本 |
| Hamilton Bartholemew | 沃尔特·马修 |
| Tex Panthollow | 詹姆斯·柯本 |
| Herman Scobie | 乔治·肯尼迪 |
| Man in Elevator (voice) (uncredited) | 斯坦利·多南 |
| Sylvie Gaudet | Dominique Minot |
| Leopold W. Gideon | Ned Glass |
| Insp. Edouard Grandpierre | Jacques Marin |
| Mr. Felix - Stamp Dealer | Paul Bonifas |
| Jean-Louis Gaudet | Thomas Chelimsky |
| Hamilton Bartholomew (uncredited) | Colin Drake |
| German Tourist (uncredited) | Clément Harari |
| Master of Ceremonies at Les Black Sheep Club (uncredited) | Monte Landis |
| Hotel Receptionnist (uncredited) | Bernard Musson |
| Ice cream salesman (uncredited) | Jacques Préboist |
| Man in Elevator / Voice of Marine (uncredited) | Peter Stone |
| Subway passenger (uncredited) | Marc Arian |
| Maid (uncredited) | Claudine Berg |
| Taxi Driver (uncredited) | Marcel Bernier |
| Man in stamp market (uncredited) | Georges Billy |
| Man in stamp market (uncredited) | Albert Daumergue |
| Taxi Driver (uncredited) | Raoul Delfosse |
