Producer and animator of the popular children's series Rugrats and Hey Arnold! on Nickelodeon and Dinosaur Train on PBS.
He learned stop-motion animation on his first job, which was at
He based the character of Brainy on Hey Arnold! on himself.
He married Lisa Bartlett, sister of The Simpsons creator
He created the preschooler show Jim Henson's Dinosaur Train, which was picked up by PBS Kids in 2008.