Countdown

Get ready to rumble! 3, 2, 1!

A former medalist who is now a troublemaker physical educations teacher and a natural born rebel take a satisfying whack at life.

Drama Comedy

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)

Tae In-ho

(Song Hee-cheol)

Cha Soon-bae

(President)

Lee Jun-hyeok

(Reporter)

Lee Hong-nae

(Lee Dong-su)

Woo Yeon-seo

Woo Jeong-won

Lee Il-hwa

(Koo Do-sun)

Park Seong-geun

(Director)

Lee Yoon-hee

(Teacher)