Instinct de femme

Dominique Laffin

Marthe

Jean-Luc Bideau

Doctor Vernier

Christine Murillo

Louise

Marcel Maréchal

Pierre, Marthe's husband

Jean-Pierre Sentier

Man from the dump

Jacques Denis

Tao, Marthe's brother

Monique Chaumette

Marthe's mother

Victor Garrivier

Professor Bronstein

Charlotte Maury-Sentier

Concierge

François Calvez

Christian

Amandine Rajau

Isabelle

Jean Amos

Delivery man

Jean de Coninck

Womanizer on the bridge

Guy Dhers

Agent of rat extermination

Alain Frérot

Rat man

Maurice Bénichou

Rat speaker

Daniel Laloux

Speaker's assistant

René Morard

Guardian

Jean-Roger Milo

Student

Daniel Russo

Nurse

Gérard Sargue

2nd nurse

Patrick Braoudé

Student (uncredited)