Lim Soo-jung
Ji Yoon-soo (16 eps)
Lee Do-hyun
Baek Seung-yoo (16 eps)
Jin Kyung
Noh Jung-ah (16 eps)
Woo Da-vi
Sung Ye-rin (16 eps)
Jang Hyun-sung
Sung Min-joon (16 eps)
Byeon Jung-su
Yoo Hye-mi (16 eps)
Choi Dae-hoon
Ryu Sung-jae (16 eps)
Baek Ji-won
Min Hee-seung (16 eps)
Kim Ho-jin
Baek Min-shik (16 eps)
Jeon Guk-hyang
Shin Kyung-in (16 eps)
Oh Hye-won
Noh Yeon-woo (16 eps)
Lee Kang-ji
Lee Hyun-jae (16 eps)
Kim Ji-young
Kim Ji-na (16 eps)
Oh Kwang-rok
Ji Hyun-wook (16 eps)
Han Gi-joong
Ryu Hyun-il (16 eps)
Choi Seung-hoon
Young Baek Min-jae (16 eps)
Jang Gwang
Noh In-Hyeong (16 eps)
Son Jin-hwan
Principal Oh Jin-taek (16 eps)
Jeon Jin-gi
Vice Principal Choi Sung-han (16 eps)
Yang Jo-a
Kim Jin-hee (16 eps)
Ahn Sang-woo
Han Myung-Jin (16 eps)
Choi Woo-sung
Jang Kyu-young (16 eps)
Lee Young-eun
Park So-jung (16 eps)
Yoon Dan-bi
Nurse (1 eps)
Go Seung Bo
Student (1 eps)