Dany Boon
Valentin Duquesne, aka Valentin D.

Line Renaud
Suzanne Duquesne, Valentin's mother

Laurence Arné
Constance Brandt, wife of Valentin

Valérie Bonneton
Louloute, Valentin's ex-fiancée

Guy Lecluyse
Gustave, Valentin's brother

François Berléand
Alexander, Constance's father

Pierre Richard
Joseph Duquesne, Valentine's father

Juliane Lepoureau
Britney

Stéphane Pezerat
Speech therapist

Aladin Reibel
Professor Rosenberg

Thomas VDB
Paparazzi

Dan Cohen
Fernando Alvarez

Judi Beecher
Kate Fischer

Antonia de Rendinger
Madame de Cléry

Ludovic Pinette
Alexander's lawyer

Ludmila Mikhailova
Olga

Slimane Majdi
Receptionist

Clémence Beauxis
Receptionist

Silvie Laguna
Baroness

Yan Tual
Security agent

Claudia Tagbo
Minister of Culture

Nathalie Blanc
Journalist Palais de Tokyo

Pierre Buf
Cashier Station A1

Jean-Pascal Abribat
Accounting

Gaetano Laury
Cashier Station A1

Karina Orr
Galerist

Vincent Primault
Professor Legard

Jeanfi Janssens
Tony

Hugues Boucher
Staid guest

Françoise Thuries
Lady

Véronique Gallet
Lady

Jean-Noël Martin
Guest

Patrick Brossard
Staid guest

Julie Schotsmans
Employee

Kad Merad
Kad Merad

Julia Vignali
Julia Vignali

Arthur
Arthur

Pascal Obispo
Pascal Obispo

Claire Chazal
Claire Chazal

Claire Guillon

Oleg Eyben
Guest (uncredited)

Sandy Lobry
Employee (uncredited)