[1] Coldefy attended primary school in Suresnes, a suburb of Paris.
She was enthusiastic about acting from a young age and took part in minor theater performances, among other activities.
After meeting French talent agent Jean-Baptiste L'Herron, she began doing castings for films and television.
Her first small role was in the drama Superstar, directed by Xavier Giannoli.
[3][4] The actress gained some international prominence in the 2019 comedy series Family Business, where she plays the eccentric girlfriend of Olivier.