Lee Won-keun

as Seung-hyun

as Young Myung-hwan

as Jae-young

as King Heon-jong

as Yong-jun

as Jae-ha

as Oh Jin-woo

as The Boy

as Kim Hong-yeon

as Kwon Si-woo

as Ahn Yoo-jun

as Chief Hong

as Hwangbo Yool

as Kim Jin-Young

as Lee Joon-ho

as Dong Hae Sung

as Himself

as Lee Eun-chang

as Kim Yeol

as Soo Kwon Tae

as Kang Moo-yeol (young)

as Kwon Do-young

as Kim Jae-woon (young)