Biography:

Bud Luckey (July 28, 1934 – February 24, 2018) was an American cartoonist, animator, singer, musician, and composer. He was best known for his work at Pixar as a character designer for Toy Story, Boundin', Toy Story 2, A Bug's Life, Monsters, Inc., Finding Nemo, Cars, The Incredibles, and Ratatouille. He was also beloved by generations of Sesame Street viewers for his numerous short animated films on that program. Description above from the Wikipedia article Bud Luckey, licensed under CC-BY-SA, full list of contributors on Wikipedia.​