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