Guillaume Aretos is a French production designer who worked as a production designer for Shrek 2, Shrek the Third, and Puss in Boots. Beforehand, he was the art director for Shrek. Most recently, he designed The Super Mario Bros. Movie for Nintendo and Illumination.
He also voiced one of the Merry Men in Shrek, Jerome the Receptionist in Shrek 2, Raul in Shrek the Third, and the Whisperer in Puss in Boots: The Three Diablos.