Élie Semoun as Gustave Latouche / Ghislaine Latouche

Joséphine de Meaux as Ghislaine Rateau

Vincent Claude as Ducobu

Juliette Chappey as Léonie Gratin

Héléna Noguerra as Adeline Gratin

Bruno Podalydès as Hervé Ducobu

Daphné Tarka as Karine

Vincent N'Diaye as Elvis

Vincent Scognamillo as Molas

Jean-François Gallotte as M. Busque

Edgar Givry as le directeur de St-Potache

Jean-Paul Bonnaire as Kitrich

Valériane de Villeneuve as la directrice de Lafontaine

François Levantal as le prof pension

Lise Lamétrie as Mlle Moute

Gérard Dubouche as le capitaine de gendarmerie

Jean-Luc Porraz as Mignard

Olivier Broche as l'inspecteur d'Académie

Cyril Lecomte as l'agent immobilier

Yves Pignot as le ministre de l'éducation

Loïc Legendre as l'infirmier maison de repos

Bob Martet as Jean-Pierre

Gautier Van Lieshout as un élève maison de repos