Most famous simply because the co-creator from the Teenage Mutant Ninja Turtles comic books, this cartoonist and author also published a comic reserve called Stupid Heroes and co-wrote a graphic novel series titled Planet Racers. Early in his profession, he proved helpful as an illustrator for the Northampton, Massachusetts paper and supplied artwork for the magazine known as The Oracle. He set up a nonprofit creative grant organization known as the Xeric Base. He and his sibling Don was raised in North Adams, Massachusetts. He and Kevin Eastman co-wrote the Teenage Mutant Ninja Turtles comics.