 | Mario Colli als Private Investigator |
 | Ria De Simone als Amalia |
 | Alena Penz als Blond Doctor |
 | Sofia Dionisio als Analyst |
 | Eva Maria Gabriel als Renzi |
 | Gina Giuri |
 | Gino Pagnani als Investigator's Assistant |
| Dario De Grassi als Antenore Onorato |
 | Gianni Solaro als Angelo Bortolotti |
 | Eolo Capritti als Von Stronfen |
| Giovanni Carpinteri |
| Roberto Verocchi |
| Giovanna Chemeri |
| Aldo Sisti |
 | Tommy Polgár als Anacleto |
 | Liana Tabacchino als Party guest (uncredited) |
| Renato Cadueri | Director |
| Renato Cadueri | Writer |
| Sergio Garrone | Writer |
| Franco Salina | Writer |
| Federico Tofi | Writer |
| Marcello Giombini | Music |
| Oberdan Troiani | Cinematography |
| Giancarlo Venarucci | Editor |
| Romeo Costantini | Production Design |
| Marcella De Marzi | Hairstylist |
| Adele Sisti | Makeup Artist |
| Elio Spalletti | Production Manager |
| Emma De Santis | Assistant Director |
| Giovanni Sambuco | Sound |
| Mallio Falcioni | Still Photographer |
| Gianni Marras | Camera Operator |
| Rosalba Scavia | Wardrobe Supervisor |
| Maria Pia Sterlicchio | Script Supervisor |
