Jean-Paul Belmondo as Roberto Borgo, aka 'La Scoumoune'

Claudia Cardinale as Georgia Saratov

Michel Constantin as Xavier Saratov, Georgia's brother and Roberto's friend

Enrique Lucero as Migli, aka 'The Mexican', Roberto's trusted man

Michel Peyrelon as Charlot, aka 'L'Élégant'

Philippe Brizard as 'Fanfan', regular at the gaming circle

Alain Mottet as 'Ficelle', henchman of Villanova

Aldo Bufi Landi as Jeannot Villanova

Jacques Debary as Carl

Marc Eyraud as 'Bonne Aventure', prisoner

Henri Vilbert as Graville, prison guard

Pierre Collet as Prison director

Nicolas Vogel as Grégoire

Luciano Catenacci as Cipriano

Lucie Arnold as Singer

Gérard Depardieu as Young crook

Jacques Rispal as Mr. Dubois, coffin dealer

Jean-Claude Michel as Xavier Saratov's lawyer

Gabriel Briand as Convict

Jacques Brunet as Convict

Jacques Marchand as Convict

Dominique Zardi as Convict

Albert Augier as Owner of the "Scarabée"

Hervé Sand as Racketeer

Andréa Ferréol as Angry prostitute

Bernard Fontaine as Killer, hired by Villanova

Marie-Claude Mestral as Prostitute

Henri Lambert as Angry player

Pierre Danny as Mine-sweeping sergeant

Bruno Balp as Inspector at the morgue

Gianfranco Cianfriglia as Player