Estelle Simon is a French actress and voice artist known for her extensive work in dubbing for animation and television. She was born into a family of performers; her mother is the actress Laurence Bru. Simon pursued formal training in theater, dance, and singing at institutions including the Cours Odile Mallet & Jean Davy, the Cours Viriot, and the ATLA School of Paris.

Her career in voice acting began after completing her studies, and she became a regular voice for the French television network M6, in addition to providing voices for numerous commercials and cartoons. In the field of anime and animated series, one of her notable roles is providing the French voice for Anna Heart in the series Kaleido Star.

Beyond this work, her voice acting filmography includes roles in major animated features. She performed the voice of a Gaulish villager in the French dub of Asterix and the Vikings, supplied additional voices for The Lion King 3, and voiced a chicken in Chicken Run. She also played the role of Lyl in the animated series The Little Prince. A significant achievement in her dubbing career was being cast by director Brad Bird for the French version of the Pixar film Ratatouille, a role that utilized her perfect bilingualism.

In addition to voice work, Estelle Simon has an active career in live theater and screen acting. She has performed in classical stage productions, including works by Molière and Shakespeare. She has also made guest appearances on French television series such as Canal+'s Engrenages and TF1's Julie Lescaut. Her work extends behind the camera as well, where she has served as a creative consultant and production assistant, including collaborations with director Hervé Renoh on films like Coursier.