| Name | Character | Episodes |
|---|---|---|
| Tom Skerritt | Bernardino Campo | 5 |
| Katharine Ross | Rosa Mastrangelo | 5 |
| Claudio Camaso | Giuseppe Gramignano | 5 |
| Lee J. Cobb | Bartolomeo Gramignano | 5 |
| John McEnery | Pietro | 5 |
| Joseph Cotten | The Envoy | 5 |
| Edward Albert | Sebastian | 5 |
| Spiros Focás | La Monica | 5 |
| Trevor Howard | Don Consalvo Saccone | 5 |
| Mel Ferrer | Armando Della Morra | 5 |
| Claudio Gora | Felice Balsamo | 5 |
| Massimo Serato | Marquis Tarcone | 5 |
| Massimo Girotti | Viceroy Caracciolo | 5 |
| Tony Lo Bianco | Nino Sciallacca | 5 |
| Franco Garofalo | Vittorio Gramignano | 5 |
| James Mason | Vianisi | 5 |
| Richard Johnson | Narrator (voice) | 5 |
| Leopoldo Trieste | Lawyer Mazzullo | 5 |
| Fernando Rey | Baron Della Spina | 5 |
| Renzo Montagnani | Antonio Mastrangelo | 5 |
| Biagio Pelligra | Angelo La Parma | 5 |
| Tony Musante | Michele Borello | 5 |
| Fausto Tozzi | Nicu Borelli | 5 |
| Giancarlo Sbragia | Prefect Mieli | 5 |
| Renato Salvatori | The Captain | 5 |