Noémie Merlant plays Marianne, a talented painter who is commissioned to do a portrait of Héloïse, leading to a forbidden romance.
Adèle Haenel portrays Héloïse, a young woman who resists the idea of marriage and falls in love with the artist painting her portrait.
Luàna Bajrami takes on the role of Sophie, the maid who assists Marianne in her painting and becomes involved in the unfolding relationship.
Valeria Golino stars as La Comtesse, Héloïse's mother who wants the portrait done discreetly to send to her daughter's potential suitor.
Christel Baras portrays La faiseuse d'anges, a woman who plays a crucial role in the film's emotional climax.
Armande Boulanger plays L'élève atelier, a student at Marianne's art workshop who is briefly featured in the film.
Guy Delamarche appears as L'homme salon, a character who is part of the social gatherings depicted in the film.
Clément Bouyssou portrays La batelier, a boatman who is involved in a significant scene in the movie.
Michèle Clément has an uncredited role as Peasant Woman in the film.
Cécile Morel also has an uncredited role as Peasant Woman in Portrait of a Lady on Fire.
Our free email delivers the daily top 10 TV shows and top 10 movies directly to your inbox. Stay ahead of the trends. Sign up below.