Ève Gagnier was a Canadian actress and singer from Quebec who built a substantial career as a voice actor for French-language dubs of animated series and films, particularly during the 1970s and 1980s. Born on November 12, 1930 in Montreal, she was a classically trained soprano who studied voice, piano, and harp at the Conservatoire de musique du Québec à Montréal. This musical training supported a career that included operetta and stage work, but she became widely known to younger audiences through her extensive voice work for television.

Within the realm of anime, Gagnier is best recognized for providing the French Canadian voice of the title character in the classic series Heidi, Girl of the Alps, a 1974 Japanese anime adaptation of Johanna Spyri's novel. Her other notable anime roles include the voice of Princess Saphir in Princess Saphir, also known as Ribbon no Kishi, and lending her voice to the characters Uranie and Natasha in the series Astro le petit robot, the French adaptation of the iconic Astro Boy. She also contributed to animated features based on Japanese productions, such as Le retour du chat botté, an anime film from Toei Animation.

Beyond anime, Gagnier's voice acting portfolio was diverse and extensive, encompassing many popular Western cartoons and children's programs. She was the first voice of Cannelle in the Quebec children's series Passe-Partout and voiced characters in Fraggle Rock, The Flintstones, The Charlie Brown and Snoopy Show, Strawberry Shortcake, and The Care Bears. In a notable recurring collaboration, she voiced the character of Lisa in the French-language version of the Japanese-European co-production Belle et Sebastian. Her filmography also includes dubbing roles for live-action performances, such as providing a voice for actress Jodie Foster in the film Napoleon and Samantha.

In addition to her voice work, Gagnier had an active career on stage and screen, performing in operettas and plays by the renowned Quebec playwright Michel Tremblay. She died in Montreal on September 19, 1984. In recognition of her contributions to the arts, a street in the Pointe-aux-Trembles district of Montreal was named Rue Ève-Gagnier in her honor.