Sophie Cellier attended the Cours Florent in Paris, from which she graduated in 2024. Having lived and worked in Australia for six years, she has solid experience as an actress in English. She is also a graduate of the 16th Street Actors Studio in Melbourne. She has worked with director Ian Sinclair (Melbourne Theatre Company) and director Scott Major (Darkland).

She is trained in classical dance, modern jazz, and singing. Since the start of the 2023 season, Sophie has held one of the leading roles in the play "Jardins Nocturnes" by Odette Branco at the Théâtre Clavel, a show that combines singing, contemporary dance, and theater.

Sophie Cellier holds a Master's degree in Production from the Victorian College of The Arts (The University of Melbourne). In 2017, she produced and directed Molière's "Dom Juan" at Janet Clarke Hall. She has also produced and acted in several short films in Australia and France. Recently, she worked on the series "The Clearing," produced by Disney+.