Tomas Milian

Vincenzo Marazzi 'Il Gobbo' / Sergio Marazzi 'Er Monnezza'

Pino Colizzi

Commissario Sarti

Isa Danieli

Maria - prostitute

Mario Piave

Commissario Valenzi

Sal Borgese

Milo Dragovic 'Albanese'

Luciano Catenacci

Adalberto Maria Perrone

Solvi Stübing

Marika Engver - embassy clerk

Guido Leontini

Mario Di Gennaro - 'Sogliola'

Francesco D'Adda

The Bespectacled Psychiatrist

Fulvio Mingozzi

Commissioner Mingozzi

Carlo Gaddi

Faina' - Gobbos friend

Alessandra Cardini

Livio Galassi

Giggi - Gobbo's friend

Nello Pazzafini

Carmine Ciacci

Franco Odoardi

The Chief Psychiatrist

Salvatore Billa

Hitman

Tom Felleghy

Questore

Alba Maiolini

Borgatara

Riccardo Petrazzi

Chauffeur

Rosario Borelli

Romolo

Anna Manduchi

Nightclub Customer (uncredited)

Quinto Gambi

Arrested Criminal (uncredited)

Fortunato Arena

Pietro Innocenzi

Benito Giua (uncredited)

Alfredo Quadrelli

(uncredited)