Kim Hyun-jin

as Tak Mu-yi (1 episode)

as Jang Woo-ju (1 episode)

as Han Seon-ho (8 episodes)

as Park Chung-jae (12 episodes)

as Lim Seon-u (16 episodes)

as Cho Ah-rang (12 episodes)

as Joo Il-young (16 episodes)

as Baek Do-hong (10 episodes)

as Jin Seon-ho (16 episodes)

as Student #1

as Yeon Ha-rim (10 episodes)

as Student #1 (10 episodes)

as Park Woo Hyung (3 episodes)