 | Rod Dana als Lester |
 | Alicia Brandet |
 | John Stacy als Lester's Chief |
 | José Bódalo als George King |
 | María Badmajew |
 | Mónica Randall |
| Sonja Romanoff |
 | Demofilo Fidani als King's Lawyer |
 | Piero Morgia |
| Francesco Tensi |
| Lino Ranieri |
 | Enrico Manera |
| Françoise Fioretti |
 | Giovanni Ivan Scratuglia |
 | Antonio Casale |
| Maria Pia Zambelli |
| Francisco Cebrián |
 | Tom Felleghy als British Counterspy Chief |
| Moisés Augusto Rocha |
 | Luciano Rossi als Dr. Krauss |
| Mario Sensi | Original Music Composer |
| Mino Guerrini | Director |
| Federico Martínez Tudó | Original Music Composer |
| Aldo Scavarda | Director of Photography |
| Alfonso Balcázar | Screenplay |
| Attilio Riccio | Screenstory |
