Jang Se-jin as Jong Jung-sung Seo Jin-won as Jong Jun Park Jung-woo as Jung Wu Lee Jong-goo as General Gu Ju People in Jurchen Shin Dong-hoon as Yi Man-ju Bang Hyung-joo as Dong Maeng-ga Ham Suk-hoon as Ah-woo, Dong Maeng-ga's older brother More Lee Il-jae as Kim Do-ryun Lee Jung-hyun as Yi Seon Cha Min-ji as Dam-yi Kim Bo-mi as Court Lady Han Jo Byung-ki as Sa-ddo Jo Min-joon as Park Kyum Kang Ji-hu as Pung-gae Won Jong-rye as Kisaeng Nyu; Jang Young-shil's mother Ahn Hae-sook as Lady Ahn of the Sunheung Ahn clan; Sejong's mother-in-law Kwon Sung-hyun as Yi Kyung-sook Sun-Hak as Oh Mak-ji Jung Jong-hyun as the head of Ikisima Kim Sun-eun as Tong-sa Kim Seung-hoon as Yamata Jo Jae-wan as Jang Won Oh Yeon-seo as Eori Kim Hong-pyo as Yi Soon-ji Seol Ji-yoon as Toegi-chunwol Lee Han-gal as Kang-hwi Kim Ji-young as the old woman Awards and nominations References External links Korean Broadcasting System television dramas 2008 South Korean television series debuts 2008 South Korean television series endings Sejong the Great Korean-language television shows Television series set in the Joseon dynasty South Korean historical television series