맞짱

Yoo Gun

Kang Gun

Lee Young-jin

So Hee

이종수

Kang Jin

백도빈

Choi Dae Ri

홍승진

Oh Dal Shik

엄태웅

Kang Gun's father

Jang Hang-seon

Kang Kwan Jang

Jung Suk-won

cameo

Jo Deok-hyeon

cameo

Kim Soo-ro

cameo