La Grise (voice)
Anne-Marie Loop
Ernest (voice)
Lambert Wilson
Monsieur Rançonnet (voice)
Jacques Ciron
Célestine (enfant) (voice)
Garance Pauwels
Juge Rat (voice)
Pierre Baton
Martin (voice)
Ethan Louis Samuels DiSalvio
Various Characters (voice)
Spike Spencer
Additional Voices (voice)
Hunter Maki
Maxime Bailleul
Kémil Belhadj
Yanis Belhadj
José António Barbosa de Oiveira
Célestine (voice)
Pauline Brunner
Swann Bey
Simon Brunner
Samuel Cahu
Adeline Chetail
Thierry d'Armor
Michel Elias
Jennifer Fauveau
Ambre Foubert
Nathalie Homs
Warren Homs
Georges (voice)
Patrice Melennec
Pascale Jacquemont
Gwenaelle Jegou
Sofiane Larcher-Guessoum
Emmanuel LeMire
Ornella Louf
Head Nurse Mouse (voice)
Perrette Pradier
Avocat d'Ernest (voice)
Yann Le Madic
Lucienne (voice)
Brigitte Virtudes
Léon (voice)
Léonard Louf
Chef de Clinique (voice)
Dominique Maurin
Juge Grizzly (voice)
Féodor Atkine
Chef de la police des Ours (voice)
Vincent Grass
Chef de la police des Rats (voice)
Patrice Dozier
Director
Benjamin Renner
Animation
Julien Chheng
Songs
Thomas Fersen
Animation Director
Patrick Imbert
Producer
Stéphan Roelants
Production Supervisor
Stephanie Sheh
Casting
Adaptation
Stéphane Aubier
Vincent Patar
Screenplay
Daniel Pennac
Recording Supervision
Bruno Seznec
Sound Re-Recording Mixer
Emmanuel de Boissieu
Vincent Tavier
Henri Magalon
Didier Brunner
Original Music Composer
Vincent Courtois
Novel
Gabrielle Vincent
Production Design
Zaza
Zyk
Publicist
Joshua Jason
Key Animation
Thomas Charra
Mathieu Chaptel
Software Engineer
Michel Hick
Michael Crouzat
Storyboard Designer
Tomislav Findrik
Sébastien Rouxel
Dialogue Editor
Valérie Le Docte
Musician
Nicolas Thys
Supervising Sound Editor
Fred Demolder
Davy Durant
Production Manager
Carval Ollivier
Thibaut Ruby
Painter
Marie Maulet
Layout
Virgile Bage
Sound Effects Editor
Bertrand Boudaud
Visual Effects Supervisor
Marc Umé
Foley
Luc Thomas
Co-Producer
Ned Lott
Pierre Aretino
Julien Perron
Gaelle Thierry
Louis Sclavis
Music Supervisor
Emmanuel Delétang
Catherine Maubourguet
Christine Seznec
Supervising Technical Director
Rip Hampton O'Neil
Stéphanie Haulet
Anaпs Moreau
Digital Compositors
Eric Dupont
Sound Recordist
Thibaut Vandermeerch
Franco Piscopo
Editor
Fabienne Alvarez-Giro
Post-Production Manager
Thomas Averland
Sound Editor
Renaud Guillaumin
Kherveen Dabyllal
ADR Mixer
Raphaël Seydoux