Cho Dong-in

as Jin-sung

as Soi-dol

as Woo-hyeok

as Newcomer

as Shadow 2

as Min-su

as Sang-jun

as Ki-chul

as Kim In-Seop

as Jo Seung-hwa

as Jjageuli

as Manager Lee

as Pinwheel

as Jung Chan-ki

as Lee Taek-Kyu

as Math Academy Teacher