Pemeran Nine Puzzles

Kim Da Mi (김다미)

as Yun I Na

Pemeran Utama

Son Suk Ku (손석구)

as Kim Han Saem

Pemeran Utama

Kim Sung Kyun (김성균)

as Yang Jeong Ho [Violent crimes unit 2 team chief]

Pemeran Pembantu

Hyun Bong Sik

as Choi San [Violent crimes unit 2 detective]

Pemeran Pembantu

Kwak Ja Hyung

as No Su Gwang [Violent crimes unit 2 detective]

Pemeran Pembantu

Cha Woo Jin

as An Yeong Ha [Violent crimes unit 2 detective]

Pemeran Pembantu

Jang Kyug Su

as Hyun Ho Geun [Hangang Police Station Chief]

Pemeran Pembantu

Jung Man Sik

as Tae Dong Su [Captain]

Pemeran Pembantu

Ahn So Yo

as Yun Go Eun [Criminal analysis team chief]

Pemeran Pembantu

Hong Bi Ra

as Byeon Ji Yun [Criminal analysis team]

Pemeran Pembantu

Kim Do Yeon

as Nam Hyeok Su [Criminal analysis team]

Pemeran Pembantu

Lee Joo Young

as Nam Na Ri [Police]

Pemeran Pembantu

Park Gyu Young (박규영)

as Lee Seung Ju [Sunlight mental health psychiatrist]

Pemeran Pembantu

Roh Jae Won

as Hwang In Chan [Sunlight mental health psychiatrist]

Pemeran Pembantu

Ji Su Yeon

as Cho Gi Bbeum [Sunlight mental health nurse]

Pemeran Pembantu

Gu Hyun

as Choi Jun Seo (Ep. 1)

Bintang Tamu

Shin Kang Kyun

as [Convenience store owner] (Ep. 1)

Bintang Tamu

Kim Ye Won

as Lee Mi Yeong [Bar madame] (Ep. 1-3, 7, 10)

Bintang Tamu

Ko Dong Hyoung

as [Crime scene investigator] (Ep. 1, 11)

Bintang Tamu

Park Jeong Yun

as [Bartender] (Ep. 2)

Bintang Tamu

Kim Do Geon

as [Police cadet] (Ep. 2)

Bintang Tamu

Yoon Hyun Sik

as [Police cadet] (Ep. 2)

Bintang Tamu

Son Byung Wook

as [Police executive] (Ep. 2)

Bintang Tamu

Jung Han Bin

as [Police executive] (Ep. 2)

Bintang Tamu

Kim Kwan Jang

as [Police executive] (Ep. 2)

Bintang Tamu

Choi Seong Hyuk

as [Apartment security guard] (Ep. 2)

Bintang Tamu

Kwon Han Sol

as Yoo Jeung Eun [Bar manager] (Ep. 2-3)

Bintang Tamu

Moon Chang Gil

as Lee Do Won (Ep. 3)

Bintang Tamu

Kang Hak Soo

as Lee Du Cheol (Ep. 3)

Bintang Tamu

Son Sung Chan

as [Dry cleaners owner] (Ep. 3)

Bintang Tamu

Joo In Young

as Yo Yang Won [Nursing home manager] (Ep. 3)

Bintang Tamu

Kwak Min Ho

as [Restaurant manager] (Ep. 3-4)

Bintang Tamu

Lee Hee Jun (이희준)

as Kang Chi Mok [Restaurant Chai president] (Ep. 3-4, 7, 10)

Bintang Tamu

Cha Shi Won

as [Hired driver] (Ep. 4)

Bintang Tamu

Shin Mi Young

as [Y Hotel housekeeper] (Ep. 4)

Bintang Tamu

Park Jin Soo

as [Rest stop manager] (Ep. 4)

Bintang Tamu

Lee Sang Won

as [Y Hotel receptionist] (Ep. 4)

Bintang Tamu

Park Jin Yeong

as Yeom Dong Han [Recycling plant cleaner] (Ep. 5)

Bintang Tamu

Im Chul Hyung

as Kim Gap Jae [Recycling plant worker] (Ep. 5)

Bintang Tamu

Choi Woo Jun

as Lee Deok Mun [Recycling plant manager] (Ep. 5)

Bintang Tamu

Nam Jin Bok

as Yeo Jung Cheol [Recycling plant worker] (Ep. 5)

Bintang Tamu

Choi Hong Il

as Choi Yeong Han [Recycling plant worker] (Ep. 5)

Bintang Tamu

Shin Yeon Woo

as [Jung Cheol’s wife] (Ep. 5)

Bintang Tamu

Shin Dong Ryuk

as Seo Do Ho (Ep. 6)

Bintang Tamu

Kim Byung Chul

as Reporter Park (Ep. 6)

Bintang Tamu

Han Yu Eun

as [Secretary] (Ep. 6)

Bintang Tamu

Bae Hyun Kyung

as [Chauffeur] (Ep. 6)

Bintang Tamu

Yoon Sang Ho

as [Security guard] (Ep. 6)

Bintang Tamu

Song Hyung Soo

as [NFS technician] (Ep. 6)

Bintang Tamu

Kwon Bum Taek

as [Dream Land employee] (Ep. 6)

Bintang Tamu

Lee Sung Min (이성민)

as Do Yun Su [DN Construction representive] (Ep. 6-7, 10)

Bintang Tamu

Choi Won

as An Hong Jae (Ep. 7)

Bintang Tamu

Lim Hyun Sung

as Son In Hwan [Detective] (Ep. 7)

Bintang Tamu

Park Jung Eon

as [Reporter] (Ep. 7)

Bintang Tamu

Park Min I

as [Ex-detective] (Ep. 7)

Bintang Tamu

Yoon Don Sun

as [Private tutor] (Ep. 7)

Bintang Tamu

Lee Eun Ju

as [Apartment mother] (Ep. 7)

Bintang Tamu

Park Won Jin

as [Dock manager] (Ep. 7-8)

Bintang Tamu

Hwang Jung Min

as O Cheol Jin [Former Sangjin Construction managing director] (Ep. 7-8, 10)

Bintang Tamu

Baek Hyun Jin

as Lee Gang Hyun [Journalist] (Ep. 7, 10)

Bintang Tamu

Oh Yong

as [Jeju detective] (Ep. 8)

Bintang Tamu

Woo Kang Min

as [Jeju detective] (Ep. 8)

Bintang Tamu

Jung Chung Gu

as [Jeju police chief] (Ep. 8)

Bintang Tamu

Kim Dam Ho

as [Teen orphan] (Ep. 9)

Bintang Tamu

Jung Gi Sub

as Kim Mo Il [Mayor] (Ep. 9-10)

Bintang Tamu

Park Sung Woong

as Kwon Sang Beom [Jeil law firm advisor] (Ep. 9-10)

Bintang Tamu

Park Eung Su

as Park Il Hyeong [Daycare director] (Ep. 9-11)

Bintang Tamu

Lee Dong Hee

as [Missing children center director] (Ep. 10)

Bintang Tamu

Kim Eung Soo

as Kim Mu Ryong [Member of national assembly] (Ep. 10-11)

Bintang Tamu

Lee Seop

as [Pilot]

Bintang Tamu

Lee Joo Han

as [Disaster Prevention Office staff]

Bintang Tamu

Kang Myoung Soo

as [International High School teacher]

Bintang Tamu

Lee Byeong Yong

as [Protestor] (Ep. 9)

Bintang Tamu

Cho Young Wuk

Composer

Yoon Jong Bin

Sutradara

Lee Eun Mi

Screenwriter