Animator who most notably created Batman: The Animated Series, Freakazoid, and Superman: The Animated Series.
He worked early in his career on the animated Warner Bros. series Tiny Toon Adventures.
He originally wanted to be a comic book artist, and he completed some minor projects for DC Comics before concentrating on a career in animation, instead.
He and his wife became parents to one daughter.
He was greatly influenced by the work of fellow artist Jack Kirby.