Un beau monstre

Virna Lisi

Nathalie Revent

Helmut Berger

Alain Revent

Charles Aznavour

Inspector Leroy

Alain Noury

Dino

Françoise Brion

Jacqueline

Édith Scob

Sylvie Revent

Marc Cassot

Vincent

Yves Brainville

Commissioner Dedru

Henri Crémieux

Professor Richet, psychiatrist

André Chanu

Doctor Schwartz

Georges Berthomieu

Toxicologist

Guy Marly

Chemist

Michel Peyrelon

Maître d'hôtel

Robert Le Béal

Judge

Dominique Marcas

Neighbor

Howard Vernon

Maître Wasserman, property administrator

Nicole Gobbi

Jocelyne Jeanssen

Robert Audran

Paul Pavel

Delivery man

Pierre Guffroy

Art Direction

Georges Garvarentz

Original Music Composer

André Tabet

Writer

Ugo Santalucia

Producer

Gabriel Rongier

Editor

Marie-Madeleine Paris

Hairstylist

Patrick Jamain

Second Assistant Director

Georges Tabet

Writer

Silla Bettini

Assistant Director

Sergio Gobbi

Director, Writer, Producer

Janette Kronegger

Assistant Editor

Dominique Fabre

Novel

Daniel Diot

Director of Photography

Mario Bua

Orchestrator

Valérie Dijon

Makeup Artist

Bernard Quatrehomme

First Assistant Director

Maurice Coignard

Orchestrator