| Actor | Stelvio Rosi (as Dr. Williams), Gianni Medici (as Joe), Franco Beltramme (as Sam), Angelo Francesco Lavagnino (as Prof. Lawrence), Dino Fazio (as Inspector Wright) |
| Actress | Mia Genberg (as Susan West), Giulia Rovai (as Joe's Girl), Loredana Nusciak (as The Deceased Mistress) |
| Assistant | Marina Prodan (as Assistant Director) |
| Creator | Elisabetta Costantini (as Costume Design), Telemaco Tilli (as Make-up), Tonino Cacciottolo (as Special Effects) |
| Director | Mario Colucci |
| Director Of Photography | Giuseppe Aquari |
| Executive Producer | Mario Colombassi |
| Film Editor | Enzo Micarelli |
| Music | Angelo Francesco Lavagnino |
| Producer | Dino Fazio |
| Production Company | Akla Productions |
| Production Designer | Massimo Bolongaro |
| Screenplay | Mario Colucci |
| Sound | Goffredo Salvatori |
| Starring | Farley Granger (as Spike), Lucia Bosé (as Sylvia Forrest), Giacomo Rossi Stuart (as Donald Forrest) |
| Subject | Mario Colucci |
| Links | https://www.davinotti.com |
