[2] In 1987 Rioux was nominated for a Genie Award for her second film role, Danielle in Le Déclin de l'empire américain.

That year she also won the Prix Gémeaux for Best Female Performance in a Supporting Role – Dramatic for L'Héritage [fr] television series.

Rioux won the Prix Gémeaux again in 2004 for her dramatic role in the series Chartrand et Simonne.

She has played in more than 30 pieces, including: Le prince des jouisseurs of Gabriel Sabourin, directed by Normand Chouinard; Rouge gueule of Étienne Lepage, directed by Claude Poissant; Un certain Stanislavski by Marcel Sabourin and Gabriel Sabourin, directed by Louis Choquette; Clash by Daniel Lemire, directed by Pierre Lebeau; Under construction by Charles L. Mee, directed by Luce Pelletier; Les grecques mounted by Luce Pelletier; Le jeu de l'amour et du hasard of Marivaux, edited by Danielle Fichaud; Le portier de la gare Windsor by Julie Vincent; Le Misanthrope by Molière, edited by Olivier Reichenbach; Shakespeare's Roméo et Juliette, edited by Guillermo de Andrea.

[8][9] Since 2001 Rioux has been a member of the women's committee of Union des Artistes, advocating for equal pay and against ageism.