Park Si-hoo

as Mu-yeong

as Kyo-sun

as Choi Cheon-joong

as Self

as Cha Woo-Hyuk

as Philip Yoo

as Choi Do-Kyung

as Kim Seong-jun

as Baek Shi-yoon

as Cha Seung-jo / Jean Thierry Cha

as Lee Doo-suk

as Kim Seung Yoo

as Goo Yong-shik

as Seo In-woo

as Lee Kang-seok

as Shi Hoo / Ja Dol

as Yoo Joon-seok

as Han Jeong-hoon

as Kang Jae-ho

as Hong Chae-rin's boyfriend