Gaspard Bellissant was born in Les Lilas, France, on May 16, 2001. He began studying dramatic arts in 2019 at Cours Florent in Paris, with teachers like Jean Pierre Garnier, Naïs El Fassi, Cendrine Orcier,  and Bruno Blairet. His first steps in cinema were in the short film "Numero 42" (2020) directed by Valentin Pitarch. He then played the role of Georges in "Parle-lui de moi" (2021) by french photographer and director Sarah Salazar, but also recently in "Banger" (2024) directed by Bertrand de Langeron. Gaspard Bellissant also appeared with Étienne Daho in the music video "Boyfriend" (2023) directed by Caroline Champetier or in the music video "Il été une pieuvre" (2022) by Philippe Katerine, Poupie and Arielle Dombasle.