 | Gaspard Ulliel als Louis-Jean Knipper |
 | Nathalie Baye als Martine |
 | Vincent Cassel als Antoine Knipper |
 | Marion Cotillard als Catherine |
 | Léa Seydoux als Suzanne Knipper |
 | Antoine Desrochers als Pierre Jolicoeur |
 | William Boyce Blanchette als Young Louis |
 | Sasha Samar als Taxi Driver |
 | Arthur Couillard als Little Boy on the Airplane |
 | Patricia Tulasne als Air Hostess |
 | Emile Rondeau als Little Louis |
 | Théodore Pellerin als Young Antoine |
 | Jenyane Provencher als Young Girl on the Trampoline |
 | Stephan Dubeau als Father |
| Xavier Dolan | Director |
| Xavier Dolan | Screenplay |
| Nathanaël Karmitz | Producer |
| Maïna Militza | Makeup Artist |
| Xavier Dolan | Producer |
| André Turpin | Director of Photography |
| Xavier Dolan | Editor |
| Raymond Larose | Set Designer |
| Sylvain Corbeil | Producer |
| Nancy Grant | Producer |
| Sinan Saber | Assistant Director |
| Robert Courtemanche | Grip |
| Denis Lamothe | Gaffer |
| Colombe Raby | Production Design |
| Pascale Deschênes | Set Decoration |
| Gabriel Yared | Original Music Composer |
| Sylvain Brassard | Supervising Sound Editor |
| Yi Zhang | Digital Compositors |
| Gael Hollard | Digital Compositors |
| Pascal Ruest | Animation |
| Julie Breton | Casting |
| Charles-Olivier Tremblay | Art Department Assistant |
| Maïna Militza | Makeup Designer |
| Sylvain Brassard | Sound Mixer |
| Pierre Thériault | Post Production Supervisor |
| Dominic Dauphin | VFX Editor |
| Serge Grenier | Grip |
| Benoît Dame | Sound Effects Editor |
| Simon Beaupré | Digital Compositors |
| Jeff Atmajian | Orchestrator |
| Sylvain Brassard | Sound Effects Editor |
| Jean-François Ferland | Visual Effects Supervisor |
| Nathalie Tremblay | Digital Compositors |
| Amélie Labrèche | Assistant Editor |
| François Fauteux | Location Manager |
| Patrick Lemay-Hardy | Digital Compositors |
| Marc Lemieux | First Assistant Camera |
| Nathalie Paquette | Script Supervisor |
| Guy Pelletier | Dialogue Editor |
| Aymeric Colas | Steadicam Operator |
| Michel Merkt | Producer |
| Claire Patronik | Production Manager |
| Pierre Picq | Boom Operator |
| Marie-Claude Lafontaine | Visual Effects Coordinator |
| Maxime Lapointe | Visual Effects Supervisor |
| Simon Mercier | Digital Compositors |
| Maïna Militza | Makeup Department Head |
| Heston Labbe | Digital Compositors |
| Rachel Terrien | Animation Production Assistant |
| Sophie Beasse | Costume Supervisor |
| Jo Caron | Foley |
| Guy Francoeur | Foley |
| Andris Pakalns | Digital Compositors |
| Clémentine Le Roy | Set Production Assistant |
| Catherine Lavoie | Makeup Artist |
| Stéphane Lefebvre | Stunt Coordinator |
| Bryan Hsu | Digital Compositor |
| Jessica Francoeur-Ducharme | Digital Compositor |
| David Décoste | Digital Compositor |
| Patrick Roy | Executive Producer |
| Jean-Luc Lagarce | Adaptation |
| Jean-Luc Lagarce | Theatre Play |
| Gabriel Yared | Orchestrator |
| François Barbeau | In Memory Of |
| Elisha Karmitz | Producer |
| Jean-Pierre Arquié | Music Producer |
| Louis Cyr | Property Master |
