Happy birthday, Jack Nicholson! The actor turns 80 on April 22 2017 and we really couldn't pass up the opportunity to celebrate with him. One of the true greats who has adorned the glittering Hollywood mantle for decades he has made brilliant films and kept us enthralled. Did you know Jack Nicholson is one of only two people to be nominated for an acting Oscar at least once every decade between 1960s and the 2000s? Amazing huh? Testament to his craft. Let's look back at some of his great roles with his best quotes. Happy Birthday Jack Nicholson.