Full cast of Study Group

Minhyun

Yoon Ga-min

11 episodes

Cha Woo-min

Phi Han-wool

11 episodes

Shin Su-hyun

Lee Ji-woo

11 episodes

Hong Min-gi

Park Geon-yeop

11 episodes

Lee Jong-hyun

Kim Se-hyeon

11 episodes

Han Ji-eun

Lee Han-kyung

11 episodes

Yun Sang-jeong

Choi Hee-won

11 episodes

Gong Do-yu

Lee Jun

11 episodes

Park Yoon-ho

Lee Hyun-woo

10 episodes

Baek Seo-hoo

Ma Min-hwan

10 episodes

Lee Gwang-hee

Jeong Do-hoon

10 episodes

Kim Young-ah

Jeon Mi Hyun

10 episodes

Jeong Jae-seong

vice-principal (Yu-seong Tech)

10 episodes

Joo Yeon-woo

Kim Soon-cheol

10 episodes

Cho Seung-yeon

dean of academic affairs (Yu-seong Tech)

10 episodes

Jin Woo-jin

Kim Gyu-Jin [Disciplinary Committee member]

10 episodes

Choi Ye-chan

10 episodes

Kim Min-ah

Hwang Mi-Hee (Yu-seong Tech)

10 episodes

Lee Dong-Hoon

Seo Yoo-bi

10 episodes

Kim Hwi-gyu

No. 173

10 episodes

Ma Hyun-ji

Hong Jae-hui

2 episodes

Lee Chang-In

Nam Sang-woo

2 episodes

Mo Geon-hu

Kook Gwan-u

2 episodes

Jeon So-young

Jang Min-hee

1 episode

Kwon Sang-woo

Jeon Young-ha

1 episode

Kim Su-gyeom

Choi Moo-kyu

1 episode

Shin Seo-Woo

Kim Se Hyeon

1 episode

Lee Woong-jae

Yoo Joon-min

1 episode