Riven

Seohyun

as Cha Seon-chaek / K

Ok Taec-yeon

as Prince Kyungsung / Lee Beon

Kwon Han-sol

as Cho Eun-ae

Seo Bum-june

as Jeong Su-gyeom

Ji Hye-won

as Do Hwa-seon

Lee Tae-seon

as Prince Seonghyeon

Seo Hyun-chul

as Cha Ho-yeol

Yun Yoo-sun

as Yoon Deok-jeong

Lee Sang-un

as Cha Jang-ho

Kim Shin-bi

as Cha Du-ho

Yoon Jung-hoon

as Cha Se-ho

Song Yeong-jae

as

Ju Seok-tae

as King Seoljong

Nam Kee-ae

as

Jung Hee-tae

as Do Bae-myeong

Jung Ho-bin

as Jeong Moon-seok

Kim Young-woong

as Cho Byeong-mu

Lee Woong-hee

Director