 | Rory Calhoun als Darios |
 | Lea Massari als Diala |
 | Georges Marchal als Peliocles |
 | Conrado San Martín als Thar |
 | Ángel Aranda als Koros, Peliocles' brother |
 | Mabel Karr als Mirte, Peliocles' sister |
 | Mimmo Palmara als Ares |
 | Roberto Camardiel als Serse, King of Rhodes |
 | Alfio Caltabiano als Creonte |
 | George Rigaud als Lisippo, Dario's uncle |
 | Yann Larvor als Mahor |
 | Carlo Tamberlani als Xenon |
 | Félix Fernández als Carete, Diala's father |
 | Ignazio Dolce als (uncredited) |
 | Antonio Casas als Phoenician Ambassador |
| Fernando Calzado als Sirione |
| Arturo Cabré als (uncredited) |
 | Álvaro de Luna als (uncredited) |
| Ángel Menéndez als Eteocle (uncredited) |
 | Nello Pazzafini als Man Ringing Gong (uncredited) |
 | Gustavo Re als Mercante (uncredited) |
 | José María Vilches als Eros (uncredited) |
| Sergio Leone | Director |
| Angelo Francesco Lavagnino | Original Music Composer |
| Michele Scaglione | Executive Producer |
| Cesare Seccia | Production Manager |
| Jorge Grau | Assistant Director |
| Antonio L. Ballesteros | Director of Photography |
| Eraldo Da Roma | Editor |
| Ramiro Gómez | Production Design |
| Vittorio Rossi | Costume Design |
| Ageo Savioli | Screenplay |
| Giuseppe Maggi | Producer |
| Sergio Leone | Story |
| Josette Trachsler | Co-Producer |
| Luis María Lasala | Second Assistant Director |
| Alfio Caltabiano | Stunts |
| Cesare Seccia | Story |
| Mario Maggi | Producer |
| Yves Boisset | Second Assistant Director |
| Francisco Rodríguez Asensio | Construction Coordinator |
| Mariano Ruiz Capillas | Second Unit Director of Photography |
| Antonio Cortés | Assistant Costume Designer |
| Luciano Martino | Screenplay |
| Ageo Savioli | Story |
| Luciano Chitarrini | Screenplay |
| Roberto Bodegas | Assistant Director Trainee |
| Isabel Ruiz Capillas | Script Supervisor |
| Luciano Chitarrini | Story |
| Ennio De Concini | Story |
| Ennio De Concini | Screenplay |
| Carlo Gualtieri | Story |
| Carlos Nin | Makeup Artist |
| Franco Frazzi | Assistant Camera |
| Marisa Mengoli | Assistant Editor |
| Sergio Leone | Screenplay |
| Cesare Seccia | Screenplay |
| Eduardo de la Fuente | Production Manager |
| Giuseppe Ranieri | Assistant Art Director |
| Erasmo Bacciucchi | Special Effects |
| Maria Pia Mancini | Costumer |
| Carlo Gualtieri | Screenplay |
| Mahnahén Velasco | Second Assistant Director |
| Jesús Mateos | Props |
| Gianni Maddaleni | Assistant Camera |
| Emilio Foriscot | Second Unit Director of Photography |
| José Castanyer | Script Supervisor |
| Tonino Cacciottolo | Sound Effects |
| María Luisa Pino | Assistant Editor |
| Angelo Francesco Lavagnino | Music Director |
| Carla Leone | Choreographer |
| Mario Amari | Sound |
| Giuseppe Turco | Sound |
| Luciano Martino | Story |
| Eduardo de la Fuente | Co-Producer |
| Robert de Nesle | Co-Producer |
| Vittorio Galiano | Special Effects |
| Aldo Colanzi | Key Grip |
| Eduardo Noé | Camera Operator |
| Irma Tonnini | Key Costumer |
| Angelo Malantrucco | Makeup Artist |
