Countdown

Jin Sun-kyu

Si-heon

Sung Yu-been

Yoon-woo

Oh Na-ra

Il-sun

Ko Chang-seok

Principal

Jang Dong-ju

Hwan-ju

Ko Kyu-phil

Man-deok

Kim Min-ho

Bok-an

Lee Jong-hwa

Gao

Choi Hyung-tae

Bok-co

Cho Jung-hun

Jody