Jean-Paul Belmondo

as Rocco

Lino Ventura

as Hervé Marec, aka 'Le plouc'

Bernard Blier

as Mitch-Mitch

Andréa Parisy

as Pepa

Gert Fröbe

as Castigliano, aka 'La betterave'

Reginald Kernan

as John Steiner aka Peter Frocht

Pierre Mirat

as Halibi, aka 'Le sourdingue'

Doudou Babet

as Khenouche, waiter at Halibi