Gian Maria Volonté as Lulù Massa

Mariangela Melato as Lidia

Salvo Randone as Militina

Gino Pernice as Sindacalista

Luigi Diberti as Bassi

Mietta Albertini as Adalgisa

Donato Castellaneta as Marx

Adriano Amidei Migliano as Tecnico

Guerrino Crivello as Cronometrista

Ezio Marano as Capo Operai

Giuseppe Fortis as Valli

Corrado Solari as Tarcisio Mena

Flavio Bucci as Operaio

Luigi Uzzo as Operaio

Federico Scrobogna as Arturo, figlio di Lidia

Nino Bignamini as Salvatore Quaranta

Carla Mancini as Operaia

Antonio Mangano as

Lorenzo Magnolia as Magnolia

Alberto Fogliani as Operaio Siciliano

Orazio Stracuzzi as Cronometrista

Marisa Rossi as

Renzo Varallo as

Eugenio Fatti as

Renata Zamengo as Maria

Giacomo Concina as (uncredited)

Vincenzo Martorana as (uncredited)

Ennio Morricone as Operaio (uncredited)

Sergio Negri as (uncredited)

Gilberto Pagani as (uncredited)

Massimo Patrone as Matto (uncredited)

Mauro Quaglia as (uncredited)

Pucci Veronica as (uncredited)