Yoo In Na(유인나) is a Korean female actress. She is under YG Entertainment. She first debuted in 'High Kick Through the Roof' as InNa. Then she later was casted in one of Korea's most popular dramas 'Secret Garden' as the cute and lovable Im AhYoung. She has just finished her movie 'My Black Mini Dress', which will be released on March 24th, 2011. She also is currently on the Korean variety show SBS's 'Heroes' and an MC on SBS's One Night Entertainment. Now she is in the drama "Greatest Love".