| Name | Character | Episodes |
|---|---|---|
| Massimo Serato | Don Page | 6 |
| Rossano Brazzi | Guy Foster | 6 |
| Turi Ferro | Ispettore Cameron | 6 |
| Luisella Boni | Joyce Dean | 6 |
| Stefano Satta Flores | Sergente Stafford | 5 |
| Franco Volpi | Dr. Norman Swanson | 5 |
| Gianni Solaro | James Coburn | 3 |
| Esmeralda Ruspoli | Melissa Foster | 2 |
| Armando Brancia | Billings | 1 |