Lionel Stander
— Lieutenant Giuseppe Petrosino
Rosanna Fratello
— Angela
Michele Placido
— Antonio Turris
Corrado Gaipa
— Lawyer
Annie Carol Edel
Nino Vingelli
— Don Gaetano
Luigi Pistilli
— Don Nunzio Pantaleo
Philippe Leroy
— The Professor
Roger Browne
— State Attorney
Mario Frera
Gilberto Galimberti
— Massara
Gianni Manera
Giacomo Rizzo
Sergio Ammirata
Salvatore Billa
Domenico Maggio
Guy Mairesse
Rosita Pisano
Antonio Anelli
— Man at Court (uncredited)
Angelo Boscariol
— Factory worker (uncredited)
Omero Capanna
— Newspaper Vendor (uncredited)
Calogero Caruana
— Passerby (uncredited)
Angelo Casadei
— Factory Worker (uncredited)
Giuseppe Castellano
— Mine Worker (uncredited)
Nestore Cavaricci
— Man in Billard Saloon (uncredited)
Manlio Dalla Pria
— Factory Worker (uncredited)
Antonio Danesi
— Coachman (uncredited)
Alberigo Donadeo
— Suspect (uncredited)
Alfonso Giganti
— Factory worker (uncredited)
Veriano Ginesi
— Don Gaetano Henchman (uncredited)