#10 Robin Williams
Robin Williams was a genius american actor. He was famous for his improvisation skills. Robin played very different roles. He was good in comedies, and dramas also. He started his career as a stand up comedian, then he started acting in Tv shows. His film debut was a musical comedy, titled Popeye. This was in 1980. After that, he played very often in movies. He has Golden Globe, Emmy Award and many nominations. He got his Oscar for the movie Good Will Huntig in 1997. He was the best supporting actor.