Ryu Jun-yeol
— Cheon Gyeong-su
유해진
— King Injo
Choi Moo-seong
— Lee Hyeong-ik
조성하
— Lord Choi
Park Myeong-hoon
— Man-sik
Kim Sung-cheol
— Crown Prince Sohyeon
Ahn Eun-jin
— Consort Jo
조윤서
— Crown Princess Kang
Lee Joo-won
— Seok-cheol
김예은
— Court Lady Seo
Jeong Suk-won
— Captain of the guard
Ryu Sung-hyun
— Senior physician
Kim Seung-tae
— Vassal 1
신문성
— Third Royal Secretary
안성봉
— Envoy of Qing Dynasty
Moon Seung-bae
— Vassal 2
김인권
— General
김채원
— Court Lady Choi
Kim Do-won
— Gyeong-jae
양희명
— Physician 1
Kim Sang-wook
— Eunuch
배용근
— Herbal Shop Merchant
장태민
— Doctor
박희은
— Court Lady
안세호
— Eunuch
서문호
— Lawmaker 3
Ahn Seok-hyun
— Prince Soong-seon
최돈학
— Eunuch