An American film director, screenwriter, and animator, he is best known for his work with Pixar Animation Studios. He began his career in animation in the late 1990s, contributing to various projects before joining Pixar. He gained recognition as the director of "Monsters University" (2013), a prequel to the beloved "Monsters, Inc." His talent for storytelling was further demonstrated in "Onward" (2020), a heartfelt fantasy adventure. His work is noted for its humor, emotional depth, and imaginative storytelling.