Délia Antonio, originally from Bern, is a French-Swiss actress. At the age of seventeen, she appeared in her first short film, The Call of Death, which was screened at the Shnit Shortfilmfestival as well as the Swiss Youth Film Festival in Zurich.

After four years of training at the Cours Florent in Paris, she was admitted in 2019 to the higher school of dramatic arts La Manufacture in Lausanne. There, she worked under the guidance of renowned figures such as Jean-Yves Ruf, François Gremaud, Gabriel Calderón, Laurent Berger, Claire Deutsch, Gwenaël Morin, Oscar Gómez Mata, Édouard Louis, and Daria Deflorian, and performed notably at the Théâtre de Vidy and the Comédie de Genève.

Since graduating in 2022, she has taken part in several theatre productions as well as various film projects. Her on-screen work includes the lead role in the web series House of Switzerland by Bernie Forster, the feature film Beyto directed by Gitta Gsell, and the film 111 by Mauro Mueller, scheduled for release in 2026.

She also plays the female lead role in Saudade, the debut feature film by Edgar Gomes Ferreira, expected to be released in 2026.