Guillaume Emmanuel Marie de Quengo de Tonquédec is a French stage, television and film actor. He first became known in his homeland for his role as Renaud Lepic in the TV series Fais pas ci, fais pas ça on France 2, before winning the César Award for Best Supporting Actor for his performance in What's in a Name? In 2013. De Tonquédec was made a Knight in the Ordre des Arts et des Lettres in 2015 by Minister of Culture Fleur Pellerin.