William James Murray (born September 21, 1950) is an American actor and comedian. Known for his deadpan delivery, Murray rose to fame on The National Lampoon Radio Hour (1973–1974) before becoming a national presence on Saturday Night Live from 1977 to 1980, where he received a Primetime Emmy Award for Outstanding Writing for a Variety Series. He starred in comedy films including Meatballs (1979), Caddyshack (1980), Stripes (1981), Ghostbusters (1984), Ghostbusters II (1989), What About Bob? (1991), Groundhog Day (1993), Kingpin (1996), The Man Who Knew Too Little (1997) and Osmosis Jones (2001). His only directorial credit is Quick Change (1990), which he co-directed with Howard Franklin.