주먹이 운다

Choi Min-sik

Gang Tae-shik

류승범

Yoo Sang-hwan

임원희

Won-tae

천호진

Sang-chul

Kim Su-hyun

Kwon Rok

나문희

Sang-hwan's Grandmother

Ki Joo-bong

Sang-hwan's Father

변희봉

Coach Park

안길강

Correctional Supervisor

Kim Yeong-in

Old Man Kim

홍지민

Caretaker

Oh Dal-su

Yong-dae