Guillaume de Tonquédec (born 18 October 1966) is a French actor. He became well known in 1991 as school-boy and Claude Jade's son Jules in Tableau d'honneur, followed by his Serge along with Juliette Binoche in Krzysztof Kieslowski's Three Colors: Blue and Claude Zidi's Deux starring Gérard Depardieu. Since 2007, he has been starring in the successful French TV series Fais pas ci, fais pas ça. In 2013, De Tonquédec won the César Award for Best Supporting Actor for his performance in What's in a Name? (original version: Le Prénom). With his wife Christèle, they have three children: Amaury, Timothé and Victoire.

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