He was the inspiration for the character "Brain" from Pinky and the Brain (1995), and was even considered to do the voice of the character.
Shared Peabody Award win as a writer on "Animaniacs" and ten prime time and daytime Emmy nominations for "Animaniacs," "The Sylvester and Tweety Mysteries," "Disney's Raw Toonage," "Duck Dodgers" and "Baby Looney Tunes.".