François-Simon Poirier is a French-Canadian voice actor and stage actor based in Montreal, Quebec. He is a graduate of the Theatre Option at Lionel-Groulx College, from which he graduated in 2006. Following his studies, he built a substantial career in theatre, performing in numerous productions ranging from youth theatre to contemporary plays, and is a member of the theatre company LAB 87. His stage work has included critically acclaimed performances and multiple collaborations with directors such as Frédéric Bélanger and companies like Théâtre Advienne Que Pourra.

In addition to his stage career, Poirier has an extensive body of work in voice acting, particularly for French dubs produced in Quebec. He is known for lending his voice to various characters in animated series and films. A specific example of his anime voice acting work is the role of Hydorous in the French-language version of the Bakugan franchise, including the series Bakugan: Armored Alliance and Bakugan: Evolutions.

Beyond anime, his voice can be heard in a wide range of other productions. He has contributed to dubs for films such as the Quebec French version of the Disney-Pixar film Onward, where he was part of the additional voices cast. His other dubbing credits include the television series Winston Steinburger and live-action projects like Vikings and The Next Step, as well as films such as 1917, Brooklyn, and Carol.

Poirier has also appeared on screen in both television and film. His on-screen credits include appearances in the series Alertes, Trauma, and Les hauts et les bas de Sophie Paquin, and roles in films like Jouliks and En attendant avril. His career reflects ongoing activity across multiple facets of performance, including theatre, voice acting for animation, and on-screen roles.