Kim Shi-hoo
Seo Yoon-soo
Kim Yoon-hye
Hae-won
Oh Hee-jun
Hyeong-joon
Kim Gwang-seop
Gwang-seop
Moon Chang-gil
Foreman Park
Lee Tae-hee
Young-jun
Jeong In-gi
Hae-won's Father
Park So-dam
Ji-yeon
Jang In-sub
Young-jae
Han Hee-jung
Homeroom Teacher