Characters played by Lim Soo-jung
Yoon-jung
So-eun
Characters played by Jo Jung-Suk
Ji-hwan
Characters played by Lee Jin-Wook
Gun-woo
Characters played by Jin-young Jung
Detective Kang
Characters played by Ki-woo Lee
Detective Lee
Characters played by Joo-Wan On
Teacher Park
Characters played by Tae-Ri Lee
Kang Seung-bum
Characters played by Jeong Woong-in
Kang Hyeong-chul
Characters played by Sin-hwan Jeon
Biology Teacher
Characters played by Ji-Hoon Kim
Counseling center detective #2
Characters played by Kwang-Hyeon Kim
Teacher of Misung Highschool