Marilyn is an actress who stands out equally in theater, film, and television through memorable roles. A graduate of the National Theatre School of Canada in 2010, she has been seen in productions such as Testament (Éric Jean), Le Joker (Éric Jean), Le déclin de l'empire américain (Patrice Dubois), and Glen Garry Glen Ross (Brigitte Poupart). In 2021, she successfully took on the challenge of performing solo on stage in Les filles et les garçons, a play by Dennis Kelly translated by Fanny Britt, which earned her the Best Actress Award from the Quebec Association of Theatre Critics.

On television, Marilyn has appeared in several productions (Au secours de Béatrice, 19-2, Vertige, Plan B, Fatale station, L’échappée, Le Pacte, Bon Matin Chuck, and Bellefleur). She plays Huguette in the series C’est comme ça que je t’aime, which has received critical acclaim since 2020 and for which she won the 2024 Gémeaux Award for Best Lead Actress in a Dramatic Series. Marilyn has also appeared in youth programs, including 1, 2, 3... Géant!, Salmigondis, and Alix et les merveilleux, for which she won two Gémeaux Awards for Best Supporting Actress in 2020 and 2021.

On the big screen, Marilyn has appeared in L'affaire Dumont (Podz), Louis Cyr (Daniel Roby), l’Ange-Gardien, and Miraculum (Podz). She was also part of Ça sent la coupe (Patrice Sauvé) alongside Louis-José Houde, Mon boy, a short film by Sarah Pellerin, and another short, Foyer, directed by Sophie B. Jacques. In 2019, she played Sarah in Matthias et Maxime (Xavier Dolan) and was part of the cast of Jusqu’au déclin, the first Quebec feature film produced by Netflix. In 2023, she appeared in the feature film Frontières, alongside Pascale Bussières, Christine Beaulieu, and Micheline Lanctôt. In 2024, we can see her in La Petite et le Vieux (Patrice Sauvé), Mlle Bottine (Yan Lanouette Turgeon), and more recently in Ma belle-mère est une sorcière.