Lee Chang-hoon as Crown Prince Sado, Lee San's father and Yeongjo's son He was skilled at archery, calligraphy, and painting. He was courted by the So-ron Faction (who fell from power) and was later framed by the No-ron Faction. After being accused of treason against the throne by his own father, King Yeongjo, Sado was sentenced to death in a rice chest. San, in secret, came to see him a few nights before he died. Sado told San to retrieve a painting he had painted of a scene King Yeongjo cherished. Sadly, Sado died before Yeongjo saw the painting. Later on, it was an adult Song-Yeon who discovered the meaning of the painting and brought it to Yeongjo, 14 years after Sado's death. With the secret revealed to the king, Yeongjo understood and Sado's name was cleared. Hwang Geum-hee as Royal Noble Consort Wonbin Hong Choi Jung Woo as Crown Prince Sado's eunuch (fiction character) Yoo Jae-suk Park Myung-soo Jeong Jun-ha Jung Hyung-don Noh Hong-chul Im Hyun-Sik Episode Ratings Yi San was popular and recorded a solid viewership rate (average) of 26.4% (Nationwide) and 28.6% (Seoul) and a peak of 35.3% (Nationwide) and 38.6% (Seoul) Awards and nominations International Broadcast In Sri Lanka, the drama aired on Rupavahini dubbed in Sinhala from 7 July 2014 to 9 February 2015. Under the title, යහපත් මහරජ - Yahapath Maharaja Notes References External links Yi San official MBC website Korean-language television shows MBC TV television dramas Television series set in the Joseon dynasty 2007 South Korean television series debuts 2008 South Korean television series endings South Korean historical television series Television series by Kim Jong-hak Production