Incredibly Smart Celebs Who Played Really Dumb Characters

11. John Lithgow

John Lithgow is known for playing a dopey alien that has no real sense of what is going on in 3rd Rock From the Sun. He is actually a Harvard alum, earning an B.A. magna cum laude in history and literature. He would later serve on Harvard’s Board of Overseers. After Harvard, he received a Fulbright scholarship to attend the London Academy of Music and Dramatic Art.