Cyr first became widely known for her ongoing role in the television drama series Chambres en ville. Her other credits have included roles in the films Malarek, Nelligan, Karmina 2, Savage Messiah (Moïse, l’affaire Roch Thériault), Love and Magnets (Les Aimants), 3 Needles, My Aunt Aline (Ma tante Aline) and Fear of Water (La peur de l'eau), and the television series Ramdam, Rumeurs, Nos étés, 30 vies and Conséquences