The First Night with the Duke: Cast
Seohyun
Cha Seon-chaek / K
Ok Taec-yeon
Prince Kyungsung / Lee Beon
Kwon Han-sol
Cho Eun-ae
Seo Bum-june
Jeong Su-gyeom
Ji Hye-won
Do Hwa-seon
Lee Tae-seon
Prince Seonghyeon
Seo Hyun-chul
Cha Ho-yeol
Yun Yoo-sun
Yoon Deok-jeong
Lee Sang-un
Cha Jang-ho
Kim Shin-bi
Cha Du-ho
Yoon Jung-hoon
Cha Se-ho
Ju Seok-tae
King Seoljong
Jung Hee-tae
Do Bae-myeong
Jung Ho-bin
Jeong Moon-seok
Kim Young-woong
Cho Byeong-mu
Kim Ah-young
Sul Gi [Shaman]