Matthew Abram Groening Is an American Animator and a Cartoonist Who Is Best Known for Being the Creator of Popular Cartoon Series “Simpsons” Which Is the Longest-Running Television Series Ever. Apart from Being a Renowned Cartoonist, Matt Is Also a Writer, Producer, and Voice Artist. Notably, the Animator Is One of the Wealthiest Cartoonists Ever, Given His Total Assets That Count in Hundreds of Millions. His Long-Standing Career as a Cartoonist, Writer, Producer, Animator, and Voice Actor, Has Earned ‘Matt’ Groening a Whooping Sum of $600 Million as His Estimated Net Worth.