 | Lou de Laâge als Julia Feynman / Julia Sorel / Julia Schönberg |
 | Raphaël Personnaz als Paul Sorel |
 | Grégory Gadebois als Pierre Feynman |
 | Denis Podalydès als Victor Massenet |
 | Esther Garrel als Emilie |
 | Dylan Raffin als Ben |
 | Aliocha Schneider als Nathan Giraud |
 | Marc de Panda als Apparitor |
| Markus Gläser als Markus Schönberg |
 | Claire Romain als Young woman musician |
| Olivier Treiner | Director |
| David Giordano | Executive Producer |
| Raphaël Treiner | Music |
| Camille Delprat | Editor |
| Valérie Deseine | Editor |
| Nathalie Chéron | Casting |
| Christophe Istier | Casting |
| Philippe Chiffre | Production Design |
| Valérie Chemain | Set Decoration |
| Marie-Laure Lasson | Costume Design |
| Virginie Berland | Wigmaker |
| Oriane Cattiaux | Makeup Artist |
| Sandrine Denis | Makeup Artist |
| Sylvie Ferry | Key Makeup Artist |
| Sylvie Ferry | Makeup Effects |
| Pierre Olivier Persin | Prosthetic Designer |
| Alexandre Houllier | Production Manager |
| Pierre Abadie | First Assistant Director (Prep) |
| Marine Benoit | Third Assistant Director |
| Aude Mancel | Crowd Assistant Director |
| Arthur Baudu | Assistant Art Director |
| François Borgeaud | Property Master |
| Léopold Bossuet | Swing |
| Pauline Carrat | Props |
| Éléonore Legeay | Assistant Set Dresser |
| Ophélie Stern | Assistant Property Master |
| Pauline Thomas | Second Assistant Art Director |
| Guadalupe Cassius | Dialogue Editor |
| Vivien Mergot | Boom Operator |
| Loïc Prian | Sound Editor |
| Nicolas Provost | Sound |
| Fleur Allain | Assistant Camera |
| Jean-Christophe Allain | Focus Puller |
| Samuel Beal-Rainaldy | Second Assistant Camera |
| Sylvain Chaux | First Assistant Camera |
| Maxime Congi | Second Assistant Camera |
| Fabien Faure | Camera Operator |
| Adrien Grasswill | Electrician |
| Jérôme Prébois | Still Photographer |
| Manon Coaquette | Casting Assistant |
| Aude Mancel | Casting Associate |
| Tiphaine Piriou | Extras Casting Assistant |
| Anna Lalay | Wardrobe Coordinator |
| Antonin Petit | Wardrobe Assistant |
| Sara Jane Slotnick | Costumer |
| Guillaume Guerry | First Assistant Editor |
| Marjolaine Mispelaere | Digital Intermediate Colorist |
| Hugo Planchais | Dailies Manager |
| Alexandre Caracostas | Location Assistant |
| Philippe Letode | Location Scout |
| Manuel Tritschler | Location Scout |
| Julia Michel | Assistant Script |
| Laurent Tangy | Director of Photography |
| Olivier Treiner | Writer |
| Olivier Mandrin | Gaffer |
| Judith Dozières | Script Supervisor |
| Camille Moreau | Writer |
