Leland Gaunt is the main antagonist of Stephen King's horror novel Needful Things, as well as the 1993 film of the same name, where he was portrayed by Max von Sydow. Mr. Gaunt is the proprietor of the store Needful Things, a this n' that shop that seemed to have an item perfectly suited for anyone who ever came in. It is later revealed that he is actually a powerful demon that tricks customers into giving him their souls (In the film, he is Satan himself).