Episode 18 S01 E18

Lee Dong-wook (as Choi Won) Kim Yoo-bin (as Choi Rang) Song Ji-hyo (as Hong Da-in) Im Seul-ong (as Crown Prince Lee Ho) Song Jong-ho (as Lee Jung-hwan) Yoon Jin-yi (as So-baek) Kang Byul (as Choi Woo-young) Kwon Hyun-sang (as Im Kkeokjeong) Jeon Kuk-hwan (as Minister Kim Chi-yong) Choi Il-hwa (as King Jungjong) Phillip Choi (as Min Do-saeng) Lee Jae-yong (as Chun-bong) Lee Won-jong (as Geo-chil) Jo Dal-hwan (as Deok-pal) Yoo Chae-young (as Geum-ok) Kim Dong-jun (as Mu Myeong) Kim Mi-kyeong (as Seo Jang-geum) Kim Yeong-ok (as So Baek's grandmother) Yum Dong-hun (as Kim Gyo-Ri)