Yves Montand as Henri Volney

Michel Etcheverry as Frédéric Heiniger

Roger Planchon as David Naggara

Jacques Denis as Despaul

Pierre Vernier as Charly Feruda

Jacques Sereys as Richard Mallory

Jean-François Garreaud as Vernon Calbert

Michel Albertini as Luigi Lacosta

Georges Beller as Sam Kido

Roland Blanche as Garcia Santos

Marcel Maréchal as Rivoli

Jean Négroni as Carlos de Palma

Robert Party as Le général Anthony Baryn

Jean-Claude Jay as Le sénateur Albert Philippe

Brigitte Lahaie as Ursula Hoffman

Maurice Bénichou as Robert Sanio, l'homme à la caméra

Roland Amstutz as Gregory

Jean-Pierre Bagot as Michaël Mix

Edmond Bernard as Le présentateur TV

Françoise Bette as Mme Bellony

Benoît Brione as Le reporter au bobino

Jacques Brylant as Nicolas Rosenko

Gabriel Cattand as Le président Marc Jarry

Nanette Corey as

Erick Desmarestz as Bob Dagan

Thierry Dewavrin as Le rédacteur du journal

Etienne Dirand as Le médecin de l'hôpital

Henry Djanik as Nick Farnese

Michel Dussarat as Robert Kosheba

Joséphine Fresson as Marianne Delila

Bernard Larmande as

Daniel Léger as Guillaume Géménos

Jean Lescot as Franck Bellony

Jean Leuvrais as Le ministre Robert Picart

Gérard Lorin as Flavius

Didier Sauvegrain as Karl Eric Daslow

Gérard Moisan as L'inspecteur au talkie walkie

Louis Navarre as Maître Keller

Jean Obé as Hugues Adler

Alain Ollivier as Le directeur du laboratoire Kodak

Michel Pilorgé as Le reporter TV

Christian Remer as Charles Polodi

Georges Staquet as Le gardien de l'immeuble de l'assassinat

Jacqueline Staup as Mme Lapierre

Georges Trillat as L'inspecteur au bar 'Manhattan'

André Falcon as Darsell

Michel Raskine as Ramon Jimenez

Henri Verneuil as Technicien TV / présentateur au cabaret (voice) (uncredited)