Guillaume Gouix learned acting at the Conservatory of Marseille, then at the Regional School of actors of Cannes.

On stage, he often works with directors such as Didier Galas, Jean-Pierre Vincent and Bruno Bayen.

Gouix made his big screen debut in the film Deuxième quinzaine de juillet directed by Christophe Reichert.

Since 2014, Gouix has been in a relationship with French actress Alysson Paradis.

[2] On 22 April 2022, Paradis announced that she's expecting her second child with Gouix.