Episode 21 S01 E21

Lee Young-ae (as Seo Ji-Yoon / Shin Saimdang) Park Hye-su (as Saimdang (young)) Song Seung-heon (as Lee Gyeom) Yang Se-jong (as Lee Gyeom (young)) Oh Yoon-ah (as Whieumdang Choi) Yoon Ye-joo (as Whieumdang Choi (young)) Yoon Da-hoon (as Lee Won-Soo) Kim Hae-sook (as Kim Jung-Hee) Choi Cheol-ho (as Min Chi-Hyung) Park Jun-myun (as Ko Hye-Jung) Lee Hae-yeong (as Jung Min-Seok) Kim Mi-kyeong (as Director Sun (Present)) Choi Jong-hwan (as King Joongjong / Min Jung-Hak) Seol Jung-hwan Song Min-hyung Lee Kyung-jin (as Lee of Yongin) Kim Min-hee (as Kwon) Jang Seo-kyung (as Hyang-i)

historical joseon dynasty (1392–1910)