Warren "Potsie" Weber is a fictional character from the sitcom Happy Days. He was played by Anson Williams.Potsie was a close friend of Richie Cunningham and Ralph Malph, who often spent time at Arnold's Drive In. He was characterized as not being very bright, somewhat gullible, socially clumsy, and in modern hindsight, very "square," and because of it, he was frequently called a nerd by friends and acquaintances.