Episode 1 S00 E01

Doh Kyung-soo (as Crown Prince Lee Yool / Won-deuk) Nam Ji-hyun (as Hong-sim / Yoon Yi-seo) Cho Seong-ha (as Kim Cha-eon) Jo Han-chul (as King) Oh Yeon-ah (as Queen Park) Ji Min-hyuk (as Prince Seo-won) Kim Seon-ho (as Jung Je-yoon) Jung Hae-kyun (as Hong-sim's Stepfather) Han So-hee (as Kim So-hye) Heo Jung-min (as Kim Soo-Ji) Kim Jae-young (as Moo-yeon) Jo Hyun-sik (as Eunuch Yang) Ahn Suk-hwan (as Lord Park Sun-do) Kim Ki-doo (as Goo-dol) Lee Min-ji (as Kkeut-Nyeo) Lee Jun-hyeok (as Park Bok-eun) Jung Ji-hoon (as Young Lee Yool) Heo Jung-eun (as Young Hong-sim / Yoon Yi-seo) Jeong Joon-won (as Young Yoon Seok-ha) Do Ji-han (as Dong-joo)

amnesia marriage of convenience romance historical double identity joseon dynasty (1392–1910) ancient korea