Cast
Charles Aznavour
Inspector Leroy
Serge Berry
Alberto Farnese
Alain's friend
Monique Mélinand
Neighbor witness
Jacques Castelot
(uncredited)
Jacques Chevalier
Police inspector (uncredited)
Marc Cassot
Vincent
Yves Brainville
Commissioner Dedru
Nicole Gobbi
Roger Coggio
Alain Revent (voice)
André Chanu
Doctor Schwartz
Helmut Berger
Alain Revent
Édith Scob
Sylvie Revent
Guy Marly
Chemist
Howard Vernon
Maître Wasserman, property administrator
Françoise Brion
Jacqueline
Henri Crémieux
Professor Richet, psychiatrist
Michel Peyrelon
Maître d'hôtel
Robert Le Béal
Judge
Virna Lisi
Nathalie Revent
Alain Noury
Dino
Paul Pavel
Delivery man
Paul Bonifas
Hotel porter
Dominique Marcas
Neighbor