While on holiday in Rhodes, Athenian war hero Darios becomes involved in two different plots to overthrow the tyrannical king, one from Rhodian patriots and the other from sinister Phoenician agents.
| Directing | Sergio Leone | Director |
| Sound | Angelo Francesco Lavagnino | Original Music Composer |
| Production | Michele Scaglione | Executive Producer |
| Production | Cesare Seccia | Production Manager |
| Directing | Jorge Grau | Assistant Director |
| Camera | Antonio L. Ballesteros | Director of Photography |
| Editing | Eraldo Da Roma | Editor |
| Art | Ramiro Gómez | Production Design |
| Costume & Make-Up | Vittorio Rossi | Costume Design |
| Writing | Ageo Savioli | Screenplay |
| Production | Giuseppe Maggi | Producer |
| Writing | Sergio Leone | Story |
| Production | Josette Trachsler | Co-Producer |
| Directing | Luis María Lasala | Second Assistant Director |
| Crew | Alfio Caltabiano | Stunts |
| Writing | Cesare Seccia | Story |
| Production | Mario Maggi | Producer |
| Directing | Yves Boisset | Second Assistant Director |
| Art | Francisco Rodríguez Asensio | Construction Coordinator |
| Camera | Mariano Ruiz Capillas | Second Unit Director of Photography |
| Costume & Make-Up | Antonio Cortés | Assistant Costume Designer |
| Writing | Luciano Martino | Screenplay |
| Writing | Ageo Savioli | Story |
| Writing | Luciano Chitarrini | Screenplay |
| Directing | Roberto Bodegas | Assistant Director Trainee |
| Directing | Isabel Ruiz Capillas | Script Supervisor |
| Writing | Luciano Chitarrini | Story |
| Writing | Ennio De Concini | Story |
| Writing | Ennio De Concini | Screenplay |
| Writing | Carlo Gualtieri | Story |
| Costume & Make-Up | Carlos Nin | Makeup Artist |
| Camera | Franco Frazzi | Assistant Camera |
| Editing | Marisa Mengoli | Assistant Editor |
| Writing | Sergio Leone | Screenplay |
| Writing | Cesare Seccia | Screenplay |
| Production | Eduardo de la Fuente | Production Manager |
| Art | Giuseppe Ranieri | Assistant Art Director |
| Crew | Erasmo Bacciucchi | Special Effects |
| Costume & Make-Up | Maria Pia Mancini | Costumer |
| Writing | Carlo Gualtieri | Screenplay |
| Directing | Mahnahén Velasco | Second Assistant Director |
| Art | Jesús Mateos | Props |
| Camera | Gianni Maddaleni | Assistant Camera |
| Camera | Emilio Foriscot | Second Unit Director of Photography |
| Directing | José Castanyer | Script Supervisor |
| Sound | Tonino Cacciottolo | Sound Effects |
| Editing | María Luisa Pino | Assistant Editor |
| Sound | Angelo Francesco Lavagnino | Music Director |
| Crew | Carla Leone | Choreographer |
| Sound | Mario Amari | Sound |
| Sound | Giuseppe Turco | Sound |
| Writing | Luciano Martino | Story |
| Production | Eduardo de la Fuente | Co-Producer |
| Production | Robert de Nesle | Co-Producer |
| Crew | Vittorio Galiano | Special Effects |
| Camera | Aldo Colanzi | Key Grip |
| Camera | Eduardo Noé | Camera Operator |
| Costume & Make-Up | Irma Tonnini | Key Costumer |
| Costume & Make-Up | Angelo Malantrucco | Makeup Artist |
