It's never too late in the day to learn unknown things about legends even if there are not with us today. For years, Robin Williams entertained generation after generation with his innate comic timing. Today we take a look at 10 unknown interesting facts about the late actor-comedian. It's hard to believe that one of world's foremost entertainer was a shy kid. As a child, Robin was believed to be overweight and had less number of friends. To keep himself entertained, he started talking in different voices. It's a surprise how his classmates in school labelled him as the one who is least likely to succeed. Well Robin indeed had the last laugh. Robin was an avid cyclist and have even trained with Lance Armstrong. Two of Robin's movies, Jumanji and the Birdcage crossed $100 million mark in the same week. Robin battled alcohol and substance abuse in the 80s and have twice checked into rehab. Goodwill Hunting where he played a supporting actor to Matt Damon fetched him an Oscar. Though the role of the Genie was specifically written for him, Robin initially declined it and accepted it until he saw a clip of his own stand up routine doing the rounds. Indians would undoubtedly remember Mrs Doubtfire, the role that Robin Williams played originally and made famous in India by Kamal Haasan through Chachi 420. Robin had married thrice in his lifetime.