Jean Dujardin as Alex

Mathilde Seigner as Valentine

Antoine Duléry as Hugo

Miou-Miou as Gabrielle

Lio as Micky

Catherine Allégret as Chantal, Ben's mother

Chloé Lambert as Johanna

Michel Lagueyrie as Jacques Dupré

Beata Nilska as Ingrid, opera singer

Marianne Groves as Ben's cousin

Frédéric Maranber as Ben's cousin

Michel Dussarat as Roberta, transvestite

Gilles Gaston-Dreyfus as Vicar

Simon Astier as Nicolas

Alexis Loret as Benjamin

Didier Bezace as Pierre