Marilyn Castonguay is a Quebec actress whose talent and versatility shine across theatre, film, and television. A graduate of the National Theatre School of Canada in 2010, she has distinguished herself on stage in Les filles et les garçons, a solo performance that earned her the Quebec Association of Theatre Critics’ Award for Best Actress in 2021.

On television, she has made a lasting impression as Huguette Delisle in the series C’est comme ça que je t’aime, a role that earned her the Gémeaux Award for Best Actress in a Drama Series in 2024. She has also made her mark in children’s television, notably in 1, 2, 3… Géant!, Salmigondis, Alix et les Merveilleux, and Drazilion. Her work in Alix et les Merveilleux earned her two Gémeaux Awards for Best Supporting Actress, in 2020 and 2021.

On the big screen, her credits include Xavier Dolan’s Matthias et Maxime, as well as Jusqu’au déclin, Frontières, La Petite et le Vieux, Mlle Bottine, and Ma belle-mère est une sorcière.