Steel Cold Winter

김시후

Seo Yoon-soo

김윤혜

Hae-won

오희준

Hyeong-joon

Kim Gwang-seop

Gwang-seop

문창길

Foreman Park

Lee Tae-hee

Young-jun

정인기

Hae-won's Father

박소담

Ji-yeon

장인섭

Young-jae

Han Hee-jung

Homeroom Teacher