Lee Kang-Woo

Lee Min-Hyeok

Joo Seo-Yeon

Kim Mi-Kyung

Park Hyun-Soo

Joo Won-Jae

Joo Won-Suk

Joo Seo-Joon

Bully University Student

[Chief Affairs of Shinhwa high school]

Vice principal of Sinhwa high school

Baek Jang-Mi

Lee Kang-Hee

Lee Joo-Hee

Doctor Kim

Oh Mi-Ja

Chairwoman Han

Choi Ho-Dol

Kang-Woo's father

Park Seok-Min

Jung-Tae