Mélanie Laurent

Élise 'Lili' Tellier

Kad Merad

Paul Tellier

Isabelle Renauld

Isabelle Tellier

Julien Boisselier

Thomas aka 'Grenouille'

Aïssa Maïga

Léa

Simon Buret

Antoine, Loïc's friend

Christophe Rossignon

The hallway teacher

Thibault de Montalembert

Psychiatrist

Éric Herson-Macarel

The first teacher

Martine Chevallier

The first nurse

Nathalie Besançon

The second nurse

Alain Cauchi

Manager of the Shopi

Laurent Claret

Thomas' father

Stéphanie Pasterkamp

Young woman at the party

Thierry Nenez

Monopole hotel receptionist

Maximilien Poullein

Young trendy (uncredited)