Lee Yo-won

as Princess Deokman

Nam Ji-hyun

as young Princess Deokman

Kim Nam-gil

as Bidam

Ko Hyun-jung

as Lady Mishil

Uhm Tae-woong

as Kim Yushin

Lee Hyun-woo

as young Kim Yushin

Park Ye-jin

as Princess Cheonmyeong

Shin Sae-kyeong

as Young Princess Cheonmyeong

Yoo Seung-ho

as Kim Chunchu

Qri

as Young Mo

Park Eun-bin

as Princess Boryang

Jeon No-min

as Seolwon

Kwak Jung-wook

as young Bojong

Choi Won-young

as General Gyebaek

Kim Jeong-hyeon

as Ho-jong

Park Jung-chul

as Kim Yong-su

Uhm Hyo-seop

as Yum-jong

Noh Young-hak

as Seokpum (young)

Park Soo-jin

as Maya (young)

Park Jae-jung

as Sadaham

Lee Seung-hyo

as Kim Alcheon

Seo Beom-sik

as general Ga-Baek

Song Ok-suk

as Seori

In Gyo-jin

as Kim Yong-choon

Kim Dong-hee

as Wang-yoon

Ryu Dam

as Godo

Jung Ho-bin

as Moon-no

Oh Si-eun

Oh Young-soo

as Monk

Seo Young-hee

as So Hwa