탐정: 더 비기닝

Kwon Sang-woo

Kang Dae-man

Sung Dong-il

Noh Tae-soo

Lee Seung-joon

Kim Yong-gyu

Park Hae-jun

Joon-soo

Seo Young-hee

Mi-ok

Yoon Kyung-ho

Detective Ma

Jo Bok-rae

Lee You-no

Lee Hae-yeong

Team Leader Seo

Ji Dae-han

Jang-ho

Choi Seong-won

Detective Jo Young-chu

Park Seong-il

Detective Song

Lee Eon-jeong

Han Seo-young

Hong Eun-taek

Gun-woo

Jo Wan-ki

Suk-hwan

Lee Chung-hee

Yang Min-a

Kwon Hyuk

Han Tae-woong

Lee Il-hwa

Detective Noh’s Wife

Min Moo-je

Sun-hye's Husband

Oh Jung-se

Hospital Patient

Kwak Eun-jin

Hot Barista

Park Jun-myun

Bakery Shop Woman

Kim Joo-heon

Boss