Who Killed the Prosecutor and Why?

Lou Castel

Carlo

Beba Lončar

Olga

Adolfo Celi

Inspector Vezzi

Massimo Serato

Uncle Fifi

Umberto D'Orsi

Romano, Don Salvatore's lawyer

Renato Baldini

Marshal Notarantonio

Consalvo Dell'Arti

Superintendent Portella

Antonio La Raina

Mauri

Carlo Landa

Roversi

Carla Mancini

Nightclub Employee

Renato Malavasi

Vicenzino Rocca

Fortunato Arena

Don Salvatore Aniello

Domenico Maggio

Garrù

Alfredo Adami

The cashier (uncredited)

Ricciotti Albanese

Newsstand employee (uncredited)