Robin Williams was an American actor and comedian known for his improvisational skills and wide variety of memorable characters. He achieved fame with 'Mork & Mindy' and won an Academy Award for 'Good Will Hunting'.
This is based on winning 13 head-to-head matchups with other famous people, but also losing 4 head-to-head matchups.
Most recently Robin Williams lost a matchup to Aamir Khan (#1246) voted by someone from Germany.