He was one of the original three animators (along with David Silverman and Bill Kopp) on The Simpsons, Tracey Ullman shorts, and subsequently directed a number of The Simpsons episodes (many of which had John Swartzwelder as an episode writer) before becoming supervising director at King of the Hill.
Dia adalah salah satu dari tiga animator asli (bersama dengan David Silverman dan Bill Kopp ) di The Simpsons , celana pendek Tracey Ullman, dan kemudian mengarahkan sejumlah episode The Simpsons (banyak di antaranya memiliki John Swartzwelder sebagai penulis episode) sebelum menjadi direktur pengawas di King of the Hill .