Since rising to prominence in the 2000s as he collaborated extensively with Omar Sy on the Service après-vente des émissions series on Canal+, Testot has starred in various film, theatre and television productions.

He notably held the lead role in the 2017 thriller miniseries La Mante, which aired on TF1 and later premiered on Netflix.

[2][3][4] Born in Boulogne-Billancourt, Île-de-France and raised in Porto-Vecchio, Corsica, Testot began on Fun Radio, with Éric Judor and Ramzy Bedia (Éric et Ramzy), before appearing on Radio Nova in Jamel Debbouze's program where he met Omar Sy for the first time, in 1997.

From 2006 to 2012, it became a famous daily column of Le Grand Journal, hosted by Michel Denisot.

Testot then played in several comedy movies, including Sur la piste du Marsupilami (2012), The Big Bad Wolf (2013) and Arrête ton cinéma (2016).