Gabdong-I

Jeong In-gi

Cha Do-hyeok

조민준

Lee Hyung-nyeon

윤상현

Ha Moo Yum

김민정

Maria Oh

성동일

Yang Cheol-gon

Lee Joon

Ryu Tae-oh

김지원

Ma Ji-wool

강남길

Han Sang-hoon

민성욱

Nam Ki Ri

윤균상

Youngest detective

Choo Soo-hyun

Oh Young-ae

윤찬영

young Ryu Tae-oh

현우

young Cha Do-hyeok

Jeong Jae Min

Ha Moo Yum [Young]

하준

Nah Do-Hyung