André Falcon
Inspector Cazenave
Günter Meisner
Doctor
Adolfo Lastretti
Luciano
Claudine Auger
Passenger on the liner (uncredited)
Alain Delon
Roch Siffredi
Bruno Balp
Spectator of the Alcazar
Henri Attal
Guard at the asylum (uncredited)
Jean Abeillé
(uncredited)
Riccardo Cucciolla
Volpone
Maurice Auzel
Policeman / Man of Sam (uncredited)
Daniel Ivernel
Inspector Fanti
Jacques Debary
Prefect
Catherine Rouvel
Lola
Marc Eyraud
Chief medical officer of the asylum (uncredited)
Reinhard Kolldehoff
Sam
Sylvain Lévignac
Doorman (uncredited)
Marcel Gassouk
Card player (uncredited)
Mireille Darc
Prostitute in the street (uncredited)
Roger Lumont
Boss of the bar de la Marine (uncredited)
Marie Marczack
Employee of the Alcazar (uncredited)
Greg Germain
Le 'Nègre'
Lionel Vitrant
Fernand
Anton Diffring
German
Gabriella Farinon
(uncredited)
Joëlle Bernard
Madam (uncredited)
Serge Davri
Charlie
Yvan Chiffre
Philippe Castelli
Hairdresser (uncredited)
Pierre Koulak
Spada
Jacques Pisias
Man of Sam (uncredited)
Laure Moutoussamy
Prostitute (uncredited)
Marius Laurey
Inspector Teissère
Günter Spörrle
Giuliano (uncredited)
Janine Souchon
Nun at the asylum (uncredited)