Fine Arts graduate Michel Montheillet was born in Lyon, and began his career as a commercial artist. He has made storyboards and layouts for animation projects, and illustrations for children's book publishers like Hachette Jeunesse. He regularly works in cooperation with Stéphane Pommier and Boris Golzio. In 2012 he did his first work as a comic book artist, when he started a comics adaptation of Maxime Chattam's novel series 'La Trilogie du Mal' for Éditions Jungle.