Robert Peterson (born January 18, 1961) is an American cartoonist, animator, director, screenwriter, storyboard supervisor, and voice actor at Pixar. He was hired at Pixar by Roger Gould in 1994 as an animator for commercials, before subsequently becoming an animator on Toy Story (1995). He was the co-director, co-star, co-head, and co-writer for Up (2009). He conceived the idea of The Good Dinosaur (2015), and was the film's original director before being dismissed from it. His work as a writer for the films Up and Finding Nemo (2003) earned him nominations for the Academy Award for Best Original Screenplay. He was also a co-writer on Cars 3 (2017) and won the Primetime Emmy Award for Outstanding Short Form Animated Program for his work on Forky Asks A Question (2020).