Steel Cold Winter

Kim Si-hoo

as

Seo Yoon-soo

Kim Yoon-hye

as

Hae-won

Oh Hee-jun

as

Hyeong-joon

Kim Gwang-seop

as

Gwang-seop

Moon Chang-gil

as

Foreman Park

Lee Tae-hee

as

Young-jun

Jeong In-gi

as

Hae-won's Fath...

Park So-dam

as

Ji-yeon

Jang In-sub

as

Young-jae

Han Hee-jung

as

Homeroom Teach...