Teacher Kim / Bu Yong-ju
Seo U-jin
Gang Dong-ju
Cha Eun-jae
Park Min-guk
Bae Mun-jeong
Yoon A-reum
Jeong In-su
Oh Myeong-sim
Jang Gi-tae
Nam Do-il
Park Eun-tak
Manager Ju
Bae Moon-jung's Father
Shin Hyeong-jeong
Professor Oh [CS Specialist]
[Yoon Wan's associate]
[Moon Jung’s father]
