Daniel Guéret, dit Microbe
Ange Dargent
Théo Leloir, dit Gasoil
Théophile Baquet
Marie-Thérèse Guéret
Audrey Tautou
Le prof de russe
Sacha Bourdo
M. Guéret
Fabio Zenoni
Le dentiste
Laurent Poitrenaux
L'organisateur du concours de dessin
Étienne Charry
Romain
Marc Delarue
Laura
Diane Besnier
Director of Photography
Laurent Brunet
Original Music Composer
Jean-Claude Vannier
Production Design
Stéphane Rozenbaum
Sound Re-Recording Mixer
Dominique Gaborieau
Casting
Sarah Teper
Writer
Michel Gondry
Director
Producer
Georges Bermann
Sound Editor
Jean Gargonne
Costume Design
Florence Fontaine
Foley Artist
Philippe Penot
Editor
Elise Fievet
Dialogue Editor
Anne-Sophie Loubette
Key Makeup Artist
Lucía Bretones-Méndez
Leïla Fournier
Hairstylist
Sariye Kozan