Franco Nero as Commissario Belli

James Whitmore as Commissioner Aldo Scavino

Fernando Rey as Cafiero

Stefania Girolami Goodwin as Anita

Duilio Del Prete as Umberto Griva

Silvano Tranquilli as Franco Griva

Ely Galleani as Chicca

Daniel Martín as Rico

Delia Boccardo as Mirella

Paul Costello as Cammarano

Luigi Diberti as Belli's Assistant

Mario Erpichini as Rivalta

Zoe Incrocci as Scavino's Wife

Bruno Corazzari as Scavino's Assassin

Massimo Vanni as Killer

Víctor Israel as Scorfano

Joaquín Solís as Tony, Cafiero's Servant

Edy Biagetti as Griva Associate

Paolo Giusti as Man at Chicca's House

Enzo G. Castellari as Reporter

Mickey Knox as Newsman at Party

Walter Patriarca as Killer with Sunglasses (uncredited)

Nello Pazzafini as Hitman (uncredited)

Giovanni Cianfriglia as Hitman (uncredited)

Riccardo Petrazzi as Hitman (uncredited)

Benito Pacifico as Cafiero Henchman (uncredited)

Leonardo Scavino as Coroner (uncredited)

Natasha Richardson as Girl Playing Hopscotch (uncredited)

Sergio Soldano as Extra (uncredited)

Lorenzo Piani as Dock Worker (uncredited)

Carla Mancini as Girl Watching TV (uncredited)