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Kad Merad as Stéphane Cardoux |
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Olivier Baroux as Romain Beaulieu |
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Marina Foïs as Soizic Le Guilvinec |
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Guillaume Canet as Alexandre Yonis / Bernard Guérin |
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André Dussollier as Werburger |
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Pierre-François Martin-Laval as Poushy |
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Frédérique Bel as Miss France |
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Frédéric Proust as Professor Rochette |
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Thierry Frémont as Theater teacher |
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Vincent Moscato as Security guard |
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Anne Marivin as spationaute #1 |
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Enrico Macias as Self (voice) |
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Florence Muller as Isabelle Cardoux |
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Martin Jobert as Hugo Cardoux (young) |
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Frédéric Maranber as Hugo Cardoux (adult) |
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François Clavier as Prison governor |
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Eric Brats as Le médecin |
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Véronique Barrault as L'attachée de presse |
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Alexandre Caumartin as Technicien 2 |
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Mathieu Bisson as Technicien 3 |
| Directing | Eric Lartigau | Director |
| Visual Effects | Alain Duverne | Creature Design |
| Writing | Kad Merad | Writer |
| Writing | Olivier Baroux | Writer |
| Writing | Julien Rappeneau | Writer |
| Production | Cyril Colbeau-Justin | Producer |
| Production | Hugues Darmois | Executive Producer |
| Production | Jean-Baptiste Dupont | Producer |
| Production | Candice Zaccagnino | Executive Producer |
| Sound | Erwann Kermorvant | Original Music Composer |
| Camera | Régis Blondeau | Director of Photography |
| Editing | Reynald Bertrand | Editor |
| Art | Sylvie Olivé | Production Design |
| Production | Pierre-Jacques Bénichou | Casting |
| Art | Romain Scavazza | Set Decoration |
| Costume & Make-Up | Marie-Laure Lasson | Costume Design |
| Costume & Make-Up | Sophie Benaiche | Makeup Artist |
| Costume & Make-Up | Véronique Delmestre | Makeup Artist |
| Costume & Make-Up | Frédéric Lainé | Makeup Artist |
| Sound | Laurent Lévy | Foley Artist |
| Production | Ophélie Gelber | Casting Assistant |
