Camille Cyr-Desmarais is a Canadian actress from Quebec, born on November 13, 1977, who specializes in dubbing for film and television. She began her career in the dubbing industry at the age of nine, becoming one of the first children in Quebec to work as a voice actor. She is the daughter of Mario Desmarais, a prolific voice actor.

Cyr-Desmarais is best known as the regular Canadian French voice for numerous Hollywood actresses, including Scarlett Johansson, Charlize Theron, Cameron Diaz, Kate Beckinsale, Kate Hudson, and Carla Gugino. Her extensive dubbing work includes providing the French Canadian voice for Scarlett Johansson in the live-action film adaptation of Ghost in the Shell, where she voiced the character Major Mira Killian, also known as Motoko Kusanagi. Her other notable dubbing credits for live-action films include voicing Scarlett Johansson as Natasha Romanoff, the Black Widow, across the Marvel Cinematic Universe, as well as Charlize Theron in Mad Max: Fury Road and Cameron Diaz in The Holiday.

Beyond live-action dubbing, Cyr-Desmarais has an extensive portfolio in animated feature films. Her animation voice roles include Nakoma in Pocahontas and its sequel, Audrey Ramirez in Atlantis: The Lost Empire, Helen Parr, also known as Elastigirl, in The Incredibles and its sequel Incredibles 2, and Emily in Corpse Bride. She also voiced Lucy Wilde in the Despicable Me films, Morticia Addams in the 2019 animated The Addams Family, Shenzi in The Lion King, and the character Candy Kong in the animated series Donkey Kong Country. In anime and Japanese animation, she provided the voice for Agent Jenny in the first Pokémon film, Pokémon: The First Movie - Mewtwo Strikes Back. She has been described as having a chameleon voice, capable of taking on multiple identities and mastering various accents.