Alexandre Sterling

As

Mathieu

Sheila O'Connor

As

Pénélope Fontanet

Alexandra Gonin

As

Samantha Fontanet, Penelope's younger sister

Daniel Russo

As

Étienne, François' dentist friend

Jean-Philippe Léonard

As

Stéphane

Laurent N'Diaye

As

Arnaud

Alain Beigel

As

Raoul

Laetitia Gabrielli

As

Joëlle, who has to take her swimming test without knowing how to swim

Frédérique Pressmann

As

Géraldine, with dental braces

Zabou Breitman

As

Catherine, Philippe's ex

Marie Bunel

As

Owner of “Studio 27” lent for Mathieu’s Party

Robert Le Béal

As

Doctor Colbert, president of the jury, defense of François

Robert Dalban

As

Serge, waiter at “La Coupole”

Janine Souchon

As

Mrs. Monnet, Vic's parents' "secret agent"

Michel Bonnet

As

Taxi driver (“no smoking”)

Gaëlle Legrand

As

Cécile, at the restaurant, sitting next to Félix

Patricia Millardet

As

Cécile's friend at the restaurant, sitting opposite Félix

Annette Poivre

As

Adrienne

Lucienne Legrand

As

Lady who takes offense at the Mozart concert in Salzburg

Mathieu Rivolier

As

Researcher in the lab with François

Eva Harling

As

Zoé

Vladimir Cosma

As

Self, at the recording studio for Poupette

Francis Lemaire

As

Samantha's little buddy

Jacques Ferrière

As

Olivier Gins

As

Marc

Michel Berreur

As

Cop controlling Vic as a "prostitute" (uncredited)

Danièle Thompson

As

Woman in restaurant, dining with François and Françoise (uncredited)

Jacques Chancel

As

Self, at “La Coupole” (uncredited)

Élie Chouraqui

As

Claude Barrac, at the restaurant talking to Françoise (uncredited)

Xavier Gélin

As

Gilles, Françoise's work colleague (uncredited)

Henri Labussière

As

Neighbor of Mathieu (uncredited)

Sandrine Bonnaire

As

High school student (silhouette) (uncredited)