Ralph Hinkley is a fictional character from the American television series The Greatest American Hero, which aired from 1981 to 1983. He is portrayed as a high school teacher who unexpectedly receives a super-powered suit from extraterrestrial beings. The suit grants him various abilities, but he struggles to master them, leading to humorous situations. In the series, Ralph teams up with Pamela Davidson, an FBI agent, to fight crime and navigate the challenges of his newfound powers. The show combines elements of comedy, action, and adventure, making Ralph a relatable hero despite his frequent blunders.