Gérard Depardieu as Boudu

Catherine Frot as Yseult Lespinglet

Gérard Jugnot as Christian Lespinglet

Constance Dollé as Coralie

Jean-Paul Rouve as Hubert

Serge Riaboukine as Géronimo

Hubert Saint-Macary as Bob

Bonnafet Tarbouriech as Perez

Dominique Ratonnat as le médecin

Jean-Pierre Foucault as Self

Frédéric Restagno as Le premier pompier

Marc Pistolesi as Le second pompier

Agnès Regolo as La mère de Coralie

Didier Lafaye as Le père de Coralie

Philippe du Janerand as L'amateur à la galerie d'art

Christiane Conil as La cliente du marché

Gérard Dubouche as Le poissonnier

Fabien Aïssa Busetta as Un visiteur de la galerie d'art

Mohamed Metina as Le vendeur du minimarket

Paul Fructus as Le forain du stand de tir

Richard Guedj as Le père du gosse à la fête foraine

Vincent Audat as L'employé de la fourrière

Gérard Tisserand as Le marinier

Luc Palun as Le fromager

Pierre Haudebourg as Un visiteur de la galerie d'art

Véronique Balme as La serveuse du restaurant