as Won Jongsoo

as Min Woo-cheon

as Han Ye-seul

as Kang Shin-jae

as Teacher Yook

as Cheon Deok-Koo

as Oh Dae-Ki

as Yoon Hyun-Moo

as Hong Ki-Cheol

as Lee Joon-dol

as Sun-Ho's secretary

as Himself