Noh Young-hak

Student

Hacker

Hyun-tae

Cha Min-woo

King Gojong

Petty officer Choi

Na Soon-nam

Kim Hee-taek

Ha Dae-chul (young)

Lee Yeong-joon

姜东秀

Jang Dong-soo (young)

Im Sung-chan

Prince Gwanghae (young)

Oh Joon-young (young)

Kim Min-ho

Lee Jung-geun (teenage)

Yushin (young)

King Uija (teen)

Jo Gyeong-su

Chun-doong (young)

Tae-won's older brother

Heo Chan-shik

Seokpum (young)

Soo-mak