천하장사 마돈나

류덕환

Oh Dong-ku

Kim Yoon-seok

Dong-ku's Father

문세윤

Big Guy

Baek Yoon-sik

Coach

Lee Eon

Park Joon-woo

박영서

Jong-man

草彅剛

Japanese Teacher

윤원석

Big Guy

이상아

Dong-ku's mother

Choi Jung-woo

President

Oh Youn-hong

President's wife

Kim Kyung-ik

Jin-cheol