Who you gonna call?
Today, "Ghostbusters" star Bill Murray celebrates his 62nd birthday -- and while he's had memorable parts in "Caddyshack," "Groundhog Day" and "Lost in Translation," it's his role as Peter Venkman that's most memorable for us.
The movie (which came out over 28 years ago!) was packed full of comedy all-stars, including Murray, Dan Aykroyd, Harold Ramis and Rick Moranis.
And most of their careers are still going strong!
Check out the gallery above to see how the stars of both "Ghostbusters" and "Ghostbusters II" have aged through the years -- including the sexy model who played Gozer and the young twins who played baby Oscar!
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