Antoine Courvoisier was born in Geneva in 1994.

Between the ages of five and twenty-one, he studied piano with Eve-Anouk Jebejian and Lennart Riise, completing his studies in the spring of 2016. The same year, he graduated from the Serge Martin Theatre School. He enjoys combining these two disciplines, as a narrator in concerts, an actor in musical shows and sometimes a musician in theatre.

He has worked on several occasions with Evelyne Castellino (Macbeth, Juste après ou Juste avant, Un Discours, À la ligne), Joan Mompart (Intendance, Mon Chien-Dieu, D'eux), Françoise Courvoisier (Oldamir Alsmatoff, La Remplaçante), Charlotte Filou (Hétérotopies, M'Pi et Jean-Louis, Louise) and with Dorian Rossel (Le Dernier Métro), Christiane Suter and Dominique Catton (Les Séparables), Pauline Sales (Normalito).

He has also created shows as part of a collective, including La Nef des Fous in 2018, Dukuduku in 2019, and Tchekhov Revisité in 2020, Le Paradis des Chats in 2022 and Dégueu in 2023. He is also touring Le Promptu with Bastien Blanchard and Les Cabarets with Charlotte Filou as a musicomic duo. In 2022 he created Le Discours, a one-man show adapted from the novel by Fabcaro. In 2024 he will co-write Broker with Angelo Dell'Aquila at the Théâtre du Loup.