American comedian, writer and actor who got his start in show-business as a writer and cast member of Saturday Night Live. Acted in the cult film This Is Spinal Tap in 1984. Well-known for his voice acting on US animated sitcom The Simpsons, for which he voices several of the main supporting cast of characters (such as Mr. Burns, Waylon Smithers, Flanders, Reverend Lovejoy, Kent Brockman, Dr. Hibbert, Dr. Marvin Monroe, Lenny, Principal Skinner, Otto and Rainier Wolfcastle).
He also hosts a show on National Public Radio entitled "Le Show."