Art Spiegelman

Art Spiegelman is a comic book writer famous for making Maus.

Appearances on The Simpsons
He appeared alongside Alan Moore and Dan Clowes in Husbands and Knives.

Role in The Simpsons
He was at a convention in Coolsville Comics & Toys in which Comic Book Guy interupted making him, Alan, and Dan attack him. He also appeared at the end with his partners as well.