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Then: Perhaps one of the most famous stoners of all time, actor Sean Penn played Jeff Spicoli -- the surfing/smoking/lackadaisical high school student who took great pleasure from defying the intimidating Mr. Hand. 'Fast Times' was Penn's second film (with 'Taps' being his first) but it's the one many seem to remember, despite his lengthy, impressive and multiple Academy Award winning career.

Now: After 'Fast Times,' Penn was on the road to becoming a star. His resume consists of some amazing performances, such as 'Casualties of War,' 'I Am Sam,' 'Mystic River' and 'Milk.' He's moved on to become an accomplished director, writer and activist.