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