Incredibly Smart Celebs Who Played Really Dumb Characters

16. Steve Martin

Steve Martin has made a living being the funny man, the good-hearted joker and the guy who may not be all there. However, he is a brilliant man and considered to be one of the greatest stand-up comedians of all time. He did major in Philosphy at UCLA before dropping out to pursue his acting career. He is also a playwright, pianist, banjo player, and author. In recent years he has made a living traveling and playing banjo.