She is known for her work in Xavier Dolan's arthouse films I Killed My Mother (2009), Laurence Anyways (2012), and Mommy (2014).

[2] She started her career in 1992, with a recurring part in the Canadian TV series Watatatow.

A couple of years later, she made her cinema debut with The Confessional, directed by Robert Lepage and starring Kristin Scott Thomas.

With Émilie Dequenne, she shared the Un Certain Regard Award for Best Actress at the 2012 Cannes Film Festival for her starring role in Laurence Anyways.

[4] In 2019, she landed a role on the play L’Heureux Stratagème, written by Marivaux and directed by Ladislas Chollat, starring alongside Éric Elmosnino and Sylvie Testud.