Harold Ramis was an American actor, director, writer, and comedian. His best-known film acting roles were as Egon Spengler in Ghost busters (1984) and Ghost busters II (1989) and Russell Ziskey in Stripes (1981); he also co-wrote those films.
As a director, his films include the comedies Caddyshack (1980), National Lampoon’s Vacation (1983), Groundhog Day (1993), and Analyze This (1999). Ramis was the original head writer of the television series SCTV, on which he also performed, as well as a co-writer of Groundhog Day and National Lampoon’s Animal House (1978). The final film that he wrote, produced, directed and acted in was Year One (2009).