Harold Allen Ramis (November 21, 1944 – February 24, 2014) was an American comedic actor, director, producer and writer. His best known movie roles were as Egon Spengler in "Ghostbusters" (1984) and Russell Ziskey in "Stripes" (1981), both movies he co-wrote. He also wrote and directed "Caddyshack" (1980), "National Lampoon's Vacation" (1983), "Groundhog Day" (1993) and "Analyze This" (1999).