Éric Thériault began as a teenager publishing comics in a fanzine called Météor in 1982, created with the help of Stéphane Sicard.
Among his works include his self-published comic book Veena, published intermittently since 1991, initially as a minicomic, then later as an alternative comic book, and in recent years as a webcomic.
He also created John Star, published in the Veena comic book and in Mensuhell.
He published various short stories in many anthologies like Real Stuff, Duplex Planet (both at Fantagraphics Books), Legal Action Comics, and 9-11: Emergency Relief (Alternative Comics).
He also worked in mainstream and alternative comics on titles such as Captain Canuck, Terra Obscura, Tales of the Teenage Mutant Ninja Turtles and on a Johnny Dollar adaptation for Moonstone Books in 2003.