Noémie Merlant as Marie de Regnier

Niels Schneider as Pierre Louÿs

Benjamin Lavernhe as Henri de Régnier

Camélia Jordana as Zohra Ben Brahim

Amira Casar as Madame de Heredia

Scali Delpeyrat as Monsier de Heredia

Mathilde Warnier as Louise de Heredia

Mélodie Richard as Hélène de Heredia

Emilien Diard-Detoeuf as Jean de Tinan

Damien Bonnard as L'éditeur

Guilhem Fabre as Claude Debussy

Alexia Giordano as La bouquetière