Morton Koopa Jr., or simply just Morton, is one of the Koopalings in the Mario games. He first appeared in Super Mario Bros. 3. He possesses similar abilities to Roy Koopa.

"MORTON! WHY MORTON HERE? OH YEAH! DA BIGGUN! BIG OL' PAIN STAR! NEED FIND BIG PAIN STAR! FIND RIGHT NOW, AND FASTLY! ME MORTON! NO PAIN STAR FOR DA MARIO!"