주먹이 운다

Choi Min-sik

Gang Tae-shik

Ryoo Seung-bum

Yoo Sang-hwan

Im Won-hee

Won-tae

Cheon Ho-jin

Sang-chul

Kim Su-hyun

Kwon Rok

Na Moon-hee

Sang-hwan's Grandmother

Ki Joo-bong

Sang-hwan's Father

Byun Hee-bong

Coach Park

An Kil-kang

Correctional Supervisor

Kim Yeong-in

Old Man Kim

Hong Ji-min

Caretaker

Oh Dal-su

Yong-dae