Incredibly Smart Celebs Who Played Really Dumb Characters

15. Jason Alexander

Jason Alexander was the butt of nearly every joke in Seinfeld as George Costanza. He could never get his life on track and was always getting himself into the worst situations. The true Jason Alexander is a brilliant actor with a wide range of talents. He is classically trained and even has a beautiful singing voice. He also has skills as a magician, performed in a wide range of mediums, and continues to be a huge force in Hollywood.