Lee Jong-hyuk

as Yu-il’s Father (1 episode)

as Ji-cheol

as Coach

as Coach (50 episodes)

as Self (8 episodes)

as Yang Dong-gu (16 episodes)

as Kim Cheol-seok (12 episodes)

as Gong Su-pyo (12 episodes)

as King (20 episodes)

as Kwon Hyuk-pil (16 episodes)

as Lee Jong-hyuk (24 episodes)

as Dong Gwan-Soo (16 episodes)

as Sang-cheol

as Colonel Shin (6 episodes)

as Lee Hyung Seok (32 episodes)

as Choi Gi-chul