Question: Jang Yeong-sil is a historical drama television series starring a South Korean actor best known for his role in what 2006 hit drama series? 
Related documents: [0]  [DOC] Song Il-gook (; born October 1, 1971) is a South Korean actor. He is best known for his role in the 2006 hit drama series "Jumong" as the titular character. [END] 
[1]  [DOC] Jang Yeong-sil () is a 2016 South Korean historical drama television series starring Song Il-gook, Kim Yeong-cheol, Kim Sang-kyung and Park Sun-young. It replaced "" and aired on KBS1 from January 2, 2016 to March 26, 2016 on Saturdays and Sundays at 21:40 (KST) for 24 episodes. [END] 
Answer: 
Jumong
Jumong