Answer
Ben Stein played the character of economics teacher Mr. Rooney in the 1986 film Ferris Bueller's Day Off. Rooney was an uptight and humorless teacher who took his job very seriously. He was constantly trying to catch Ferris and his friends breaking school rules, but they always managed to outsmart him. Rooney was a memorable character who helped to make Ferris Bueller's Day Off a classic film.