13. Robin Williams, Street Mime
Before he cut his teeth in the San Fransisco stand-up scene, Williams got some legit acting training at Julliard. While he was training at the greatest and most pretentious drama school of all time, Williams was a walking bohemian stereotype: He was a mime working the sidewalks outside MoMA.
We imagine his reviews from passing pedestrians were closer to the clippings from What Dreams May Come than Good Will Hunting.