Jean-Paul Belmondo

Doctor Paul Simay

Mia Farrow

Christine Dupont

Laura Antonelli

Martine Dupont

Marlène Appelt

Nurse Carole

Dominique Zardi

Bishop

Daniel Lecourtois

Professor Dupont

Daniel Ivernel

Doctor Berthier

Patrick Préjean

Arthur Ringard

Michel Peyrelon

Joseph Melville

Henri Attal

'La sourde'

Maja Wodecka

Monique Fardoulis

Catherine Ohotnikoff

Josiane Balasko

Ugly girl (uncredited)

Christian Chauvaud

Friend of Dr. Popaul (uncredited)

Patrice Énard

(uncredited)

Louis Navarre

Suitor of Martine (uncredited)

André Penvern

(uncredited)

Daniel Villattes

(uncredited)