Shin Won-ho

as Silent boy

as Boot

as Seol In-u (2 episodes)

as Choi In Kook [Young] (14 episodes)

as Shin Won-ho (12 episodes)

as Hyun-seok

as 최재욱

as Choi Jae-wook (20 episodes)

as Won Ho

as Cha-du

as Corporal Joo [Jung Woo's soldier] (16 episodes)

as Yun Seok

as [Soo Jung's boyfriend] [Present day]

as Do Kyung

as Tae-kyu

as Young-rim