Kadro (18)
Kim Ok-vinPrincess So-hee/Moo-young
Uhm Tae-woongYeon Choong
Choi Min-sooYeon Gaesomun
Kim Yeong-cheolKing Yeongnyu
On Ju-wanBojang of Goguryeo
No Min-wooYeon Namsaeng
Park Soo-jinMo-seol
Yoon So-heeNang-ga
Lee Won-jongJang-po
Lee Tae-riCrown Prince Hwangwon
Lee Yi-kyungTae-pyung
Kim Sang-hoSo Sa-beon
Kwak Jung-wookChi-woon
You Chea-myungKil-Boo
Jo Jae-yunBoo-chi
Chae Sang-wooYeon Choong (young)
Lee Jung-shinSi Woo
Jung Zi-soCho-hee