Bud Spencer as Inspector Rizzo

Enzo Cannavale as Caputo

Werner Pochath as Spiros

Joe Stewardson as Smollet

Carel Trichardt as Captain Müller

Desmond Thompson as John Desmond - Commissioner of Police

Baldwyn Dakile as Bodo

Dagmar Lassander as Margy

Antonio Allocca as Receptionist

Giancarlo Bastianoni as Smollet's Henchman

Franco Cirino as Polizist in Neapel

Giorgio Cerioni as Mitarbeiter in der Diamantenmine

Ester Carloni as Maria, tabaco seller

Rita Ehlers as Helga

Carlo Reali as Edmonds' assistant

Jos Jansen as Van Dyck

Ottaviano Dell'Acqua as Bus Hooligan (uncredited)

Claudio Ruffini as Henchman in the local (uncredited)