Yeo Jin-goo

as Self

as Yong-dae

as Yi Myeon

as Self

as Self / MC

as Self

as Yong

as Self

as Eun Gye-hoon

as Self - Planet master

as Han Joo-won

as Jang Young-sil (voice)

as Self

as Goo Chan-sung

as Young Goo

as Clown Ha-seon / King Yi-heon

as 主演

as Self

as Self

as Self

as Self

as Park Jong-chul

as Sung Hae-Sung

as Prince Gwanghae

as Kim Woo-Jin

as Self

as King Yeongjo

as Yeong-gwang

as Jung Jae-min

as Soo-myung

as Ah-gwi's Follower

as Narrator (voice)

as Lee Byung-joo

as Hwa-yi

as Hong Hye-sung

as Han Jung-woo (young)

as Lee Hwon (young)

as Ddol-bok (teen)

as Baek Dong-soo (young)

as Ho-dong (young)

as Young Hong-rim

as Young Kim Jin-hyuk

as Kim Goni (young)

as Da-sung

as Lee Gyeom (young)

as Young Tae

as Young Killa

as Park Hee-chan

as Prince Myeongshin / Park Young