An acclaimed American film director and screenwriter, he has been a prominent figure at Walt Disney Animation Studios. He began his career as a story artist and quickly rose through the ranks. Known for co-directing successful animated features such as "Winnie the Pooh," "Big Hero 6," which won an Academy Award for Best Animated Feature, "Raya and the Last Dragon," and "Strange World," his work is celebrated for its creativity and emotional depth, making a significant impact in modern animation.