Lee Min-jae

as Gong Su-ho (1 episode)

as Hong Kang-ho (1 episode)

as Lee Wan-do (14 episodes)

as Young Dokgo Cheol (12 episodes)

as Woo-ju

as Lee Min-jae (12 episodes)

as Kiddo

as Do Jin-woo (12 episodes)

as Self (1 episode)

as Lee Chae-dong (10 episodes)

as Seo Geon-hu (16 episodes)

as Go Hyun-tak (8 episodes)

as Do Jae-yi (16 episodes)

as Kwon Min-ho (16 episodes)

as Mun Hyeon-min (4 episodes)

as Oh Hak-soo (16 episodes)

as Seong-woo

as Seung Won's classmate (3 episodes)

as Jung Eun-ho (1 episode)