| Name | Character | Episodes |
|---|---|---|
| Jack Hawkins | Ben Manfred | 39 |
| Vittorio De Sica | Ricco Poccari | 39 |
| Dan Dailey | Tim Collier | 39 |
| Richard Conte | Jeff Ryder | 39 |
| Lisa Gastoni | Giulia | 39 |
| Jack Hawkins | Ben Manfred (uncredited) | 1 |
| David Graham | Pantin | 1 |
| Honor Blackman | Nicole | 1 |
| Frank Thornton | Clerk | 1 |
| Robert Ayres | Chairman | 1 |