Valérie Lemercier
Nicolas's mother
Kad Merad
Nicolas's father
Sandrine Kiberlain
Teacher
François-Xavier Demaison
Mr. Dubon, aka 'le Bouillon'
Michel Duchaussoy
Director
Daniel Prévost
Mr. Moucheboume
Gérard Jugnot
Choir director Clément Mathieu
François Damiens
Mr. Blédur
Germain Petit Damico
Rufus
Éric Berger
Albert, butler
Françoise Bertin
Playful old lady
Nathalie Cerda
Madame Moucheboume
Cyril Couton
Nicolas's uncle
Virginia Anderson
Secretary
Simon Goscinny du Chatenet
Student in the exam room
Serge Riaboukine
Francis Leborgne
Renaud Rutten
Driving school instructor
Tristan Aquilina
Child of the wasteland (uncredited)
Jean-Michel Lahmi
Gangster