Marcello Mastroianni as Marco Mazetti

Catherine Deneuve as Irène de Fontenoy

Micheline Presle as Dr Delavigne

Claude Melki as Lucien Soumain

Mireille Mathieu as Mireille Mathieu

Maurice Biraud as Lamarie

Alice Sapritch as Ramona Martinez

Jacques Legras as Leboeuf

Marisa Pavan as Maria Mazetti

André Falcon as Scipion Lemeu

Raymond Gérôme as Dr Chaumont de Latour

Benjamin Legrand as Lucas

Michèle Moretti as Ginou

Madeleine Barbulée as Mlle Janvier

Micheline Dax as Mme Corfa

Myriam Boyer as Ninon Barbeau

Andrée Tainsy as Clarisse de Saint-Clair

Tonie Marshall as The Bobino's host

Elizabeth Teissier as Dr Chaumont's Assistant