Pemeran Who Are You

So Yi Hyun

as Detective Yang Shi On

Pemeran Utama

Ok Taec Yeon (옥택연)

as Detective Cha Gun Woo

Pemeran Utama

Kim Jae Uck (김재욱)

as Lee Hyung Joon

Pemeran Utama

Kim Chang Wan

as Detective Choi Moo Shik

Pemeran Pembantu

Noh Young Hak

as Im Sung Chan

Pemeran Pembantu

Kim Ye Won (김예원)

as Jang Hee Bin

Pemeran Pembantu

Oh Hee Joon

as Seung Ha

Pemeran Pembantu

Park Young Ji

as Director Moon Heung Joo

Pemeran Pembantu

Kim Seung Soo

as Prosecutor Park Woong Joon

Pemeran Pembantu

Kim Ki Cheon

as [Police supervisor]

Pemeran Pembantu

Han Eun Sun

as Yeon Hee

Pemeran Pembantu

Mun Ka Young (문가영)

as Dan O Reum

Pemeran Pembantu

Choi Hyun Seo

as Kim Jeong Im

Pemeran Pembantu

Jang Hyun Sung

as Psychiatrist Park Hyung Jin(Ep. 1-2)

Bintang Tamu

Choi Woo Shik (최우식)

as Hee Goo (Ep.10, 12-13)

Bintang Tamu

Yoo Ji Hyun

as [Lee Ji Won's Sister] (Ep.14)

Bintang Tamu

Kim Dong Hee

as [New Officer] (Ep.16)

Bintang Tamu

Kim Yoon Hye

as Im Jeong Eun (Ep.16)

Bintang Tamu

Jo Seung Hyun

as Kyeong Min (Ep.16)

Bintang Tamu

Ha Jun (하준)

as Lee U Seok (Ep. 16)

Bintang Tamu

Kim Hyo Myung

as [Male student]

Bintang Tamu

Park Geon Rak

as Baek Yang Beom [Yeong Geol's friend ]

Bintang Tamu

Jo Hyun Tack

Sutradara

Ban Ki Ri

Screenwriter

Moon Ji Young

Screenwriter