Park Bo-young
Hwan Seung-hee
Kim Young-kwang
Hwang Woo-yeon
Kang Ki-young
Ok Geun-nam
Go Gyu-pil
Gu Kong-ja
Jang Seong-beom
Choi Soo-pyo
Cha Yup
Lee Taek-gi
Seo Eun-soo
Park Min-kyung
Bae Hae-seon
Seung-hee's Mother
Ahn Kil-kang
Woo-yeon's Father
Shin So-yul
So-jung
Song Jae-rim
Yoon-geun
So Hee-jung
Woo-yeon's Mother
Lim Hyung-jun
Mr. Bae
Kim Hyun-sook
Ms. Min
Jung Da-won
Boarding Student
Yoo Hee-je
Taek-gi's Subordinate
Ha Jun
Seung-hee's Partner
Kim Soo Hyun
Student
Yoon Kyung-ho
Detective
Baek Seung-chul
Police Station Detective Squad Chief