Nine Puzzles (2025)

Yoon Jong Bin

Lee Eun Mi

Kim Da Mi
Yun I Na
Main Role
Son Suk Ku
Kim Han Saem
Main Role

Kim Sung Kyun
Yang Jeong Ho [Violent crimes unit 2 team chief]
Support Role
Hyun Bong Sik
Choi San [Violent crimes unit 2 detective]
Support Role
Kwak Ja Hyung
No Su Gwang [Violent crimes unit 2 detective]
Support Role
Cha Woo Jin
An Yeong Ha [Violent crimes unit 2 detective]
Support Role
Jang Kyug Su
Hyun Ho Geun [Hangang Police Station Chief]
Support Role
Park Eung Su
Park Il Hyeong [Daycare director]
Support Role
Jeong Man Sik
Tae Dong Su [Captain]
Support Role
Ahn So Yo
Yun Go Eun [Criminal analysis team chief]
Support Role
Hong Bi Ra
Byeon Ji Yun [Criminal analysis team]
Support Role
Kim Do Yeon
Nam Hyeok Su [Criminal analysis team]
Support Role
Lee Joo Young
Nam Na Ri [Police]
Support Role

Gu Hyun
Choi Jun Seo (Ep. 1)
Guest Role
Ki Eun Yoo
Choi Jun U [Jun Seo's brother] (Ep. 1)
Guest Role
Joo Hae Eun
Yeom Se Ryung [I Na's roommate] (Ep. 1)
Guest Role
Kim Ye Won
Lee Mi Yeong [Bar madame] (Ep. 2-3)
Guest Role
Kwon Han Sol
Yoo Jeung Eun [Bar manager] (Ep. 2-3)
Guest Role
Moon Chang Gil
Lee Do Won (Ep. 3)
Guest Role
Kang Hak Soo
Lee Du Cheol (Ep. 3)
Guest Role
Son Sung Chan
[Dry cleaners owner] (Ep. 3)
Guest Role
Joo In Young
[Nursing home manager] (Ep. 3)
Guest Role
Lee Hee Joon
Kang Chi Mok [Restaurant Chai president] (Ep. 3-4)
Guest Role
Kwak Min Ho
[Restaurant manager] (Ep. 3-4)
Guest Role
Nam Yoon Ho
No Jae Uk [Yang Hui's lover] (Ep. 4)
Guest Role
Cha Shi Won
[Hired driver] (Ep. 4)
Guest Role
Shin Mi Young
[Housekeeper] (Ep. 4)
Guest Role
Park Jin Soo
[Rest stop manager] (Ep. 4)
Guest Role
Lee Sang Won
[Y Hotel receptionist] (Ep. 4)
Guest Role
Park Jin Yeong
Yeom Dong Han [Recycling plant cleaner] (Ep. 5)
Guest Role
Im Chul Hyung
Kim Gap Jae [Recycling plant worker] (Ep. 5)
Guest Role
Choi Woo Jun
Lee Deok Mun [Recycling plant manager] (Ep. 5)
Guest Role
Nam Jin Bok
Yeo Jung Cheol [Recycling plant worker] (Ep. 5)
Guest Role
Choi Hong Il
Choi Yeong Han [Recycling plant worker] (Ep. 5)
Guest Role
Byun Hong Jun
Choi Dong Gyeong [Yeong Han's son] (Ep. 5)
Guest Role
Shin Yeon Woo
[Jung Cheol’s wife] (Ep. 5)
Guest Role
Shin Dong Ryuk
Seo Do Ho (Ep. 6)
Guest Role
Kim Byung Chul
Reporter Park (Ep. 6)
Guest Role
Lee Sung Min
Do Yun Su [DN Construction representive] (Ep. 6)
Guest Role
Han Yu Eun
[Secretary] (Ep. 6)
Guest Role
Bae Hyun Kyung
[Chauffeur] (Ep. 6)
Guest Role
Yoon Sang Ho
[Security guard] (Ep. 6)
Guest Role
Song Hyung Soo
[NFS technician] (Ep. 6)
Guest Role
Kwon Bum Taek
[Dream Land employee] (Ep. 6)
Guest Role
Choi Won
An Hong Jae (Ep. 7)
Guest Role
Lim Hyun Sung
Son In Hwan [Detective] (Ep. 7)
Guest Role
Baek Hyun Jin
Lee Gang Hyun [Journalist] (Ep. 7)
Guest Role
Kim Geon U
Lee Seon Uk [Gang Hyun's son] (Ep. 7)
Guest Role
Go Yoo Jin
Cho Seol Gi [Seon Uk's tutor friend] (Ep. 7)
Guest Role
Park Jung Eon
[Reporter] (Ep. 7)
Guest Role
Park Jeong Yun
[Reporter] (Ep. 7)
Guest Role
Park Min I
[Ex-detective] (Ep. 7)
Guest Role
Yoon Don Sun
[Private tutor] (Ep. 7)
Guest Role
Hwang Jung Min
O Cheol Jin [Former Sangjin Construction managing director] (Ep. 7-8)
Guest Role
Oh Yong
[Jeju detective] (Ep. 8)
Guest Role
Woo Kang Min
[Jeju detective] (Ep. 8)
Guest Role
Jung Chung Gu
[Jeju police chief] (Ep. 8)
Guest Role
Jung Gi Sub
Kim Mo Il [Mayor] (Ep. 9)
Guest Role
Park Sung Woong
Kwon Sang Beom [Jeil law firm advisor] (Ep. 9)
Guest Role
Ji Jin Hee
Yun Dong Hun [I Na's uncle]
Guest Role
Park Mi Hyun
Hong Ra Eun [Han Saem's mother]
Guest Role
Ok Ja Yeon
Seo Yang Hui [Chi Mok's wife]
Guest Role
Park Sung Yun
Kong Yeong Im [I Na's housekeeper]
Guest Role
Park Gyu Young
Lee Seung Ju [Sunlight mental health psychiatrist]
Guest Role
Ji Su Yeon
Cho Gi Bbeum [Sunlight mental health nurse]
Guest Role
Noh Jae Won
Hwang In Chan [Sunlight mental health psychiatrist]
Guest Role
Kim Do Geon
[Police cadet]
Guest Role
Ko Dong Hyoung
[Crime scene investigator]
Guest Role
Kim Eung Soo Guest Role