Glaucus, a demobilized centurion returns home to Pompeii to find his father murdered by a gang of black-hooded Christian robbers that terrorizes the city and he decides to investigate the matter while the nearby volcano threatens to erupt.
| Directing | Mario Bonnard | Director |
| Production | Lucio Fulci | Associate Producer |
| Writing | Sergio Leone | Writer |
| Writing | Ennio De Concini | Writer |
| Writing | Luigi Emmanuele | Writer |
| Writing | Sergio Corbucci | Writer |
| Writing | Duccio Tessari | Writer |
| Directing | Sergio Corbucci | Assistant Director |
| Directing | Sergio Leone | Assistant Director |
| Directing | Duccio Tessari | First Assistant Director |
| Editing | Eraldo Da Roma | Editor |
| Writing | Edward George Bulwer-Lytton | Novel |
| Sound | Angelo Francesco Lavagnino | Original Music Composer |
| Editing | Julio Peña | Editor |
| Art | Aldo Tommasini | Production Design |
| Costume & Make-Up | Vittorio Rossi | Costume Design |
| Art | Ramiro Gómez | Production Design |
| Art | Ramiro Gómez | Set Decoration |
| Camera | Antonio L. Ballesteros | Director of Photography |
| Costume & Make-Up | Duilio Cambellotti | Costume Design |
| Camera | Eduardo Noé | Camera Operator |
| Camera | Dario Di Palma | Assistant Camera |
| Camera | Domenico Mancori | Camera Operator |
| Production | Alfonso Fabrizio | Production Secretary |
| Sound | Giovanni Porcelli | Sound Engineer |
| Production | Renato Silvestri | Supervising Producer |
| Sound | Primiano Muratori | Boom Operator |
| Camera | Sandro Mancori | Assistant Camera |
| Editing | Marcella Benvenuti | Assistant Editor |
| Production | Paolo Moffa | Executive Producer |
| Production | Cesare Seccia | Production Manager |
| Art | Giuseppe Ranieri | Assistant Production Design |
| Directing | José Castanyer | Script Supervisor |
| Art | Rafael Ferri | Assistant Production Design |
| Production | Eduardo de la Fuente | Production Manager |
| Production | Renato Silvestri | Production Manager |
| Visual Effects | Emilio Ruiz del Río | Matte Painter |
| Camera | Enzo Barboni | Second Unit Director of Photography |
| Production | Luigi Pinini | Production Assistant |
| Costume & Make-Up | Antonia López | Hairstylist |
| Costume & Make-Up | Carmen Martínez | Makeup Artist |
| Crew | Dino Galiano | Special Effects |
| Art | Francisco Rodríguez Asensio | Construction Coordinator |
| Crew | Antonio Macasoli | Special Effects |
| Camera | Adolfo Guerrieri | Still Photographer |
| Costume & Make-Up | Irma Tonnini | Wardrobe Supervisor |
| Editing | María Luisa Pino | Assistant Editor |
| Art | Rafael Pérez Murcia | Assistant Production Design |
| Art | Augusto Lega | Construction Coordinator |
| Sound | Mario Amari | Sound Engineer |
| Crew | Eros Bacciucchi | Pyrotechnician |
| Costume & Make-Up | Luciana Bagni | Assistant Costume Designer |
| Production | Miguel Asensio Llamas | Production Assistant |
| Production | Antonio Montoya | Production Assistant |
| Costume & Make-Up | Angelo Malantrucco | Makeup Artist |
| Directing | Augusto Fenollar | Second Assistant Director |
| Directing | Sergio Leone | Second Unit Director |
| Directing | Sergio Leone | Co-Director |
