A true historical drama about King Sejong, the greatest ruler in Joseon history who sought to enhance national prosperity and military power through astronomy, and Jang Yeong-sil, the most remarkable scientist.
Jang Yeong-sil
King Sejong
Minister
Jo Mal-saeng
Jeong Nam-son
Jo Sun-saeng
Im Hyo-don
Crown Prince Yi Hyang
Sa-im
Choi Hyo-nam
Shin-gae
Yun Jung-bu
Choi Man-ri
Choi Cheon-gu
Yun Sa-wung
Eunuch Jeong
Jo Seo-gang
King's Soldier
Baek-ho
Oh Yang
Sergeant
Myung Envoy
Guru
Sahŏnbu Soldier
