Trailer
Images
 | Steve Reeves as Glaucus Leto |
 | Christine Kaufmann as Elena / Ione |
 | Fernando Rey as Arbaces, High Priest of Isis |
 | Barbara Carroll as Nydia |
 | Anne-Marie Baumann as Julia |
 | Mimmo Palmara as Gallinus, a Praetorian Guard |
 | Guillermo Marín as Ascanius, Consul of Pompei |
 | Carlo Tamberlani as Olinto, Christian Leader |
 | Mino Doro as Consul |
 | María Silva as Julia's Maid |
 | Jesús Puente as Roman Senator |
 | Vicky Lagos as Woman in Red |
| Ignazio Dolce as Caius |
 | Mario Berriatúa as Praetorian Guard |
| Mino Doro as Roman Consul |
 | Ángel Aranda as Antoninus Marcus |
 | Mario Morales as Marcus, Military Tribune |
| Ángel Ortiz as Helios, a Praetorian Guard |
| Lola Torres as Tavern Keeper |
| Tony Richards |
 | Antonio Casas |
| Ignaz Cole |
| Pedro Fenollar as Announcer |
| Hank Bergman as Roman Soldier (uncredited) |
| Directing | |
| Mario Bonnard | Director |
Production | |
| Lucio Fulci | Associate Producer |
Writing | |
| Ennio De Concini | Writer |
| Sergio Leone | Writer |
| Duccio Tessari | Writer |
| Sergio Corbucci | Writer |
| Luigi Emmanuele | Writer |
Directing | |
| Sergio Corbucci | Assistant Director |
| Duccio Tessari | First Assistant Director |
Art | |
| Ramiro Gómez | Production Design |
Sound | |
| Angelo Francesco Lavagnino | Original Music Composer |
Writing | |
| Edward George Bulwer-Lytton | Novel |
Art | |
| Aldo Tommasini | Production Design |
Camera | |
| Antonio L. Ballesteros | Director of Photography |
Costume & Make-Up | |
| Duilio Cambellotti | Costume Design |
Editing | |
| Eraldo Da Roma | Editor |
Costume & Make-Up | |
| Vittorio Rossi | Costume Design |
Art | |
| Ramiro Gómez | Set Decoration |
Editing | |
| Julio Peña | Editor |
Camera | |
| Eduardo Noé | Camera Operator |
Production | |
| Paolo Moffa | Executive Producer |
| Eduardo de la Fuente | Production Manager |
| Renato Silvestri | Supervising Producer |
Directing | |
| Augusto Fenollar | Second Assistant Director |
Camera | |
| Dario Di Palma | Assistant Camera |
Costume & Make-Up | |
| Luciana Bagni | Assistant Costume Designer |
| Irma Tonnini | Wardrobe Supervisor |
Production | |
| Alfonso Fabrizio | Production Secretary |
| Antonio Montoya | Production Assistant |
| Cesare Seccia | Production Manager |
Crew | |
| Eros Bacciucchi | Pyrotechnician |
| Antonio Macasoli | Special Effects |
Costume & Make-Up | |
| Antonia López | Hairstylist |
Art | |
| Francisco Rodríguez Asensio | Construction Coordinator |
| Rafael Pérez Murcia | Assistant Production Design |
Sound | |
| Giovanni Porcelli | Sound Engineer |
| Primiano Muratori | Boom Operator |
Editing | |
| María Luisa Pino | Assistant Editor |
Costume & Make-Up | |
| Carmen Martínez | Makeup Artist |
Art | |
| Augusto Lega | Construction Coordinator |
Crew | |
| Dino Galiano | Special Effects |
Visual Effects | |
| Emilio Ruiz del Río | Matte Painter |
Production | |
| Luigi Pinini | Production Assistant |
Costume & Make-Up | |
| Angelo Malantrucco | Makeup Artist |
Art | |
| Rafael Ferri | Assistant Production Design |
| Giuseppe Ranieri | Assistant Production Design |
Camera | |
| Adolfo Guerrieri | Still Photographer |
Production | |
| Renato Silvestri | Production Manager |
Camera | |
| Domenico Mancori | Camera Operator |
Editing | |
| Marcella Benvenuti | Assistant Editor |
Camera | |
| Enzo Barboni | Second Unit Director of Photography |
Production | |
| Miguel Asensio Llamas | Production Assistant |
Sound | |
| Mario Amari | Sound Engineer |
Directing | |
| José Castanyer | Script Supervisor |
Camera | |
| Sandro Mancori | Assistant Camera |
Directing | |
| Sergio Leone | Co-Director |
