Inaugurating his career at the Cleveland Playhouse, American character actor Robert F. Simon made his first Broadway appearance in Clifford Odets' Clash By Night. In 1949, Simon succeeded Lee J. Cobb in the role of Willy Loman in Arthur Miller's Death of a Salesman. He made his film debut in 1954, spending the next two decades playing a steady stream of generals, doctors, executives and journalists. One of Simon's most prominent film roles was the father of the title character in 1956's The Benny Goodman Story. On television, Simon played bombastic newspaper editor J. Jonah Jameson in the weekly adventure series The Amazing Spider-Man (1977-78), and could also be seen in recurring roles on Saints and Sinners (1961), Bewitched (1964), Custer (1967), Nancy (1970) and MASH (1972-73 season, as General Mitchell).