Who Killed the Prosecutor and Why? (1972) — Cast
Cast
| Antonio La Raina | Mauri |
| Beba Lončar | Olga |
| Sisto Brunetti | Policeman |
| Carlo Landa | Roversi |
| Ricciotti Albanese | Newsstand |
| Umberto D'Orsi | Don |
| Consalvo Dell'Arti | Superintendent |
| Lou Castel | Carlo Rizzi |
| Massimo Serato | Fifi |
| Alfredo Adami | (uncredited) |
| Domenico Maggio | Garrù |
| Renato Malavasi | Isa Rocca |
| Renato Baldini | Marshal |
| Adolfo Celi | Inspector Juve (as Edmond Bréon) |
| Carla Mancini | Nightclub Hotty |
| Goffredo Unger | Don |
| Fortunato Arena | Aniello |
| Riccardo Petrazzi | Don |
| Claudio Morabito | (uncredited) |
Crew
| Anacleto Amadio | Production Supervisor |
| Franco Villa | Director of Photography |
| Sergio Bollino | Production Supervisor |
| Osanna Guardini | Costume Designer |
| Claudio Morabito | Camera Operator |
| Thomas Lang | Screenplay |
| Otello Cocchi | General Manager |
| Mario Bertolazzi | Original Music Composer |
| Manlio Camastro | Assistant Editor |
| Elio Pacella | Sound |
| Giuseppe Vari | Editor |
| Sonia Bencini | Script Supervisor |
| Ricciotti Albanese | Assistant Director |
| Giuseppe Vari | Director |
| Enrico Biribicchi | Assistant Camera |
| Athos Danilo Zanetti | Art Direction |
| Corrado Blengini | Makeup Artist |