sentences:  Early on, he appeared in "Modern Problems" alongside Chevy Chase.Again, years later, he memorably appeared as Chevy Chase's uptight boss, Frank Shirley, in "National Lampoon's Christmas Vacation" (1989), and co-starred as arcade tycoon Noah Vanderhoff in the film version of "Wayne's World" (1992).He landed a small role as assassin Jack Ruby in "JFK" (1991).