A regular on French-Canadian screens beginning in the late '80s, Johanne-Marie Tremblay was one of Quebec's most dependable character actresses. Born in Montreal in 1950, she landed her first notable role in 1982 when she played Anne Vanasse in the soap opera "Une vie" (TVA 1982-85) but then spent the next few years honing her craft in various stage productions and as part of the innovative theatrical troupe, Le Groupe de la Veillée. After making her big screen debut as Sarah, one third of the ménage a trois in a "À corps perdu" (1988), Tremblay worked with director Denys Arcand for the first time when she played Sister Constance in the Oscar-nominated allegorical tale "Jésus de Montréal" (1989).
Tremblay was then cast as Célina Bordeleau, the mother of romantic heroine Émilie in the hugely popular historical drama "Les filles de Caleb" (Radio-Canada 1990-91) and followed it up with cinematic roles as Félicité in "La sarrasine" (1992), the Inspector's wife in "Being at Home with Claude" (1992) and wronged woman Annie in "La vie fantôme" (1992) before returning to TV as Ginette Boivin in the long-running soap opera "Virginie" (Radio Canada 1996-2010). Following a three-episode stint as Claire Daigneault in the crime drama "Fortier" (TVA 2000-04), Tremblay played doctor Louise Gravel in "Mon meilleur ennemi "(Radio-Canada 2001-03), took the lead role of Béatrice in mining strike-based mini-series "Asbestos" (Radio Canada 2002) and reunited with Arcand on the Oscar-winning "Les Invasions Barbares" ("The Barbarian Invasions") (2003).
After appearing as Madeleine Carignan in the mid-18th Century epic "Battle Of The Brave" (2004), Tremblay then landed minor roles in the biopic of Quebec chanteuse Alys Robi, "Ma vie en cinémascope" (2004), and thriller "Without Her" (2006), teamed up with Arcand for a third time on "L'Âge de ténèbres" (2007) and played the mother of tragic student Jean-François in the school massacre drama "Polytechnique" (2009). Following a small role in Xavier Dolan's semi-autobiographical "I Killed My Mother," Tremblay appeared in the short films "TS: Travailleur social" (2010) and "La dernière rondelle" (2010), was cast as Sofia in the sci-fi psychological web series "Fréquences" (2012) and played Françoise in Sébastian Pilote's Cannes Festival hit "Le démantèlement" (2013).