Kadro (14)
Lee Beom-sooLee Dae-roh
Choi Sung-kookDetective Cha Jin-chul
Son Hyun-jooDetective Kang Jong-taeByeon Ju-YeonLee Hyun-ji
Kang Sung-yeonKim Young-sook
Park Choong-seonDetective Park
Ryu Tae-hoJason Park
Choo Ja-hyunYang Jung-ae
Jo Min-kiSection chief Jo
Yoo Hai-jinHankal
Oh Hyeon-kyeongChairman Ji
Oh Ji-hyeHyun-ji's teacher
Yun So-jeongDoctor
Woo Jung-kook