as Hae-wol
as Philosopher
as Park Gil-ho
as Yeong-su Kim
as Jae-min
as Jong-hwan
as Man-seok
as Baek-soo
as Narrator (voice)
as Bang Chil-sung
as Joon Ki's father
as Han Beom-Man
as Oh Pyeong-Pan
as Lee Soon-Tae
as Kang Da-goo
as Kim Young Soo
as Do Jin-Myung
as Wang Sik-ryeom
as King Dongmyeongseong of Goguryeo
as Seol In-gwi
as Jo Han-il
as Byeon Young-Hee
as Yoon Won Hyung
as Host
as Lee Ui Min
as King Youngjo
as Shin Seok-ju
as Baek Hyun-moo
as Tae-seob Hwang
as Kang Kam-Chan
as Hwang Jae-Man
as Han Myeong Hoe
as Jang Hee Jae
as Chairman Goo Myeong-han
as King Injo
as Lee Joong-goo
as Baek Chang-hak
as Kim Tae-sung
as Kim Won-Ik
as Lee Jin-sam
as Chun Doo-hwan
as Jang Do-hyun
as President Kang Min-kook
as President Choi Eun-chul
as Jin Si-hwang
as Park Byung-Sam
as Park Woong
as Lee Shin-Jae
as Lee Duk Hwa
