French actor who is known for being the creator, director, writer, and lead actor of the television series Kaamelott where he played the character of King Arthur. He is also known for his directing work on the 2014 project Asterix: The Mansions of the Gods.
He first studied music at the American School of Modern Music in Paris and later studied acting and screenwriting. He made his cinema debut as a screenwriter and songwriter for the short film Soyons Sport and Un Soupcon Fonde Sur Quelque Chose de Gras. He then started his own show Kaamelott in January of 2005.
He is also known for having released a series of graphic novels following the Kaamelott series entitled Kaamelott Resistance.
He is the son of Lionnel Astier and Joele Sevilla who star as Leodagan and Seli in his series Kaamelott. His wife Anne-Gaelle Daval is also head of costume on the series.