Lee Hwa-ryong

as Noh Tae-pyeong (16 episodes)

as Director of KCDC

as Ahn Kyung-hee (16 episodes)

as Kim Kye-shik (12 episodes)

as Myung Kwae Nam (16 episodes)

as Park Gwang-Il (32 episodes)

as Homeroom Teacher

as Priest Halm Se-woong

as Min-cheol’s Friend

as Prosecutor 1

as Doctor Koo