Robart was trained at the French National Academy of Dramatic Arts in Paris, from 1993 to 1996, dividing his artistic activities between theatre and film, directing, acting, and writing.

In 2000, Jérôme Robart created his first play Tes which he directed and co-produced with the National Dramatic Centers of Bordeaux and Orléans.

[1] In 2001, his second play, Eddy, f. de pute was coproduced by the Théâtre Ouvert of Paris, the National Dramatic Center of Bordeaux and Le Poche of Geneva.

In the theatre, Robart has been directed by Christophe Perton, Joël Jouanneau, Jorge Lavelli, Jean-Louis Thamin, and Stéphanie Loïk in plays by Rodrigo Garcia, Lionel Spycher, Luigi Pirandello, Bernard Manciet, and Jean Audureau.

From 2008 to 2017, he played the title role of an 18th-century Parisian police commissioner in the Nicolas Le Floch series of television films, broadcast in France on France 2, and inspired by the series of historical detective novels by Jean-François Parot.