Cast List
Kim Seon-a
Chun Jae-in
Gong Yoo
No-young
Sang-mi Nam
Seung-hee
Ha Jung-woo
Detective Cho
Park Sang-Myeon
Class teacher
Ju-hyeon No
Detective Chun
Kim Kap-su
Cha Young-jae
Beom-su Lee
Detective working on maths exam
Oh Kwang-rok
Bae Doo-sang
Kim Sang-Ho
Detective Kang
Su-a Hong
Jo Hye-ryung
Kim Sun-young
Math teacher
