 | Jack Taylor als Charles Butler / Agent Sigma 3 |
 | Silvia Solar als Catherine |
 | Armando Calvo als Karamesinis |
 | Mia Genberg als Anna |
 | Remo De Angelis als Karl |
| Sheila Rosin als Maylin |
 | Mario Novelli als Joey, Sigma 3's Best Friend |
| Gualtiero Isnenghi als Professor Goodwin |
| Diana Martín |
| Walter Neng |
| Lilian Saxon |
| Francisco Cebrián |
| Alberto Gadea |
| Carmen Roger als Herself - Flamenco Dancer |
| Frank Harris |
| Manuel Carra | Original Music Composer |
| Loredana Longo | Costume Design |
| Romolo Garroni | Director of Photography |
| Antonio Gimeno | Editor |
| Ferdinando Felicioni | Producer |
| José Luis Galicia | Art Direction |
| Giuseppe Ranieri | Costume Design |
| Gian Paolo Callegari | Director |
| Roberto Natale | Screenplay |
| Romano Migliorini | Screenplay |
| Tiziano Longo | Screenplay |
