A tough, violent cop who doesn't mind bending the law goes after a machine-gun-carrying, hunchbacked psychotic killer.
| Directing | Umberto Lenzi | Director |
| Writing | Dardano Sacchetti | Writer |
| Sound | Franco Micalizzi | Original Music Composer |
| Production | Mino Loy | Producer |
| Production | Luciano Martino | Producer |
| Writing | Umberto Lenzi | Story |
| Writing | Dardano Sacchetti | Screenplay |
| Camera | Federico Zanni | Director of Photography |
| Editing | Daniele Alabiso | Editor |
| Editing | Maurizio Alabiso | Assistant Editor |
| Art | Giorgio Bertolini | Production Design |
| Costume & Make-Up | Franco Carretti | Costume Design |
| Costume & Make-Up | Teodora Bruno | Hairstylist |
| Costume & Make-Up | Marcello Longhi | Hairstylist |
| Costume & Make-Up | Massimo Giustini | Makeup Artist |
| Production | Sergio Borelli | Production Manager |
| Production | Luciano Catenacci | Production Supervisor |
| Production | Lamberto Palmieri | Production Supervisor |
| Production | Marcello Tagliaferri | Unit Manager |
| Directing | Goffredo Unger | Assistant Director |
| Art | Francesco Bidoccu | Assistant Production Design |
| Crew | Gino Vagniluca | Special Effects |
| Camera | Mario Sbrenna | Camera Operator |
| Lighting | Roberto Belli | Electrician |
| Camera | Giuseppe Gabrielli | Key Grip |
| Camera | Mario Pastorini | Assistant Camera |
| Camera | Elio Polacchi | Camera Operator |
| Camera | Mario Sabatelli | Still Photographer |
| Costume & Make-Up | Davide Cenci | Costume Design |
| Costume & Make-Up | Vanda Pruni | Costume Design |
| Costume & Make-Up | Anna Rasetti | Seamstress |
| Crew | Terry Levene | Presenter |
| Crew | Gino Vagniluca | Armorer |
| Directing | Mirella Malatesta | Script Supervisor |
| Sound | Ferruccio Amendola | ADR & Dubbing |
| Sound | Pino Locchi | ADR & Dubbing |
| Sound | Arturo Dominici | ADR & Dubbing |