Jeffrey Duncan Jones (born September 28, 1946) is an American actor best known for his roles as Emperor Joseph II in Amadeus, Edward R. Rooney in Ferris Bueller's Day Off, and Charles Deetz in Beetlejuice. Jones' career started in Guthrie Theatre in Minneapolis, Minnesota, advanced to London and Broadway, before leading to a series of character acting roles in film and television, which often capitalized on Jones' deadpan delivery of characters in unusual situations to comic effect.