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