Characters played by Michel Serrault
Docteur Petiot
Characters played by Pierre Romans
Drezner
Characters played by Bérangère Bonvoisin
Georgette Petiot
Characters played by Zbigniew Horoks
Nathan Guzik
Characters played by Aurore Prieto
Madame Guzik
Characters played by Nita Klein
Madame Kern
Characters played by Claude Degliame
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Characters played by Martine Montgermont
Cécile Drezner
Characters played by Nini Crépon
Collard
Characters played by André Julien
Forestier
Characters played by André Chaumeau
Célestin Nivelon
Characters played by Axel Bogousslavsky
Louis Rossignol
Characters played by Maxime Collion
Gérard Petiot
Characters played by Nadège Boscher
Alice
Characters played by Jean Dautremay
Gourlin
Characters played by Michel Hart
Colonel F.F.I.
Characters played by Dominique Marcas
Madame Valéry
Characters played by Jean-Michel Molé
Monsieur Kern
Characters played by Julien Verdier
Le pharmacien
Characters played by Olivier Saladin
Premier agent
Characters played by Jean-François Soubielle
Deuxième agent
Characters played by Maryline Even
Madame Gilbert
Characters played by Jean-Louis Grinfeld
Monsieur Gilbert
Characters played by Claude Barichasse
Lacsour
Characters played by Lorella Cravotta
La voisine Petiot
Characters played by Jeanne David
Le veuve avocat
Characters played by Philippe Polet
Le jeune S.T.O.
Characters played by Marie Vallin
La concierge Petiot
Characters played by Michel Caccia
Le sergent caserne
Characters played by André Lacombe
L'inspecteur
Characters played by Béatrice Avoine
La prostituée
Characters played by Jean Lio
Le vampire
Characters played by Jacques Serizier
L'homme poursuivi
Characters played by Philippe Dehesdin
Client coiffeur
Characters played by Bernard Charnacé
Client coiffeur
Characters played by Paul Vally
Client coiffeur