Lee Dong-wook
Ryu Soo-yeol (12 eps)
Wi Ha-jun
K (12 eps)
Han Ji-eun
Lee Hee-gyeom (12 eps)
Cha Hak-yeon
Oh Kyung-tae (12 eps)
Kang Ae-sim
Seo Seung-sook (12 eps)
Kim Dae-gon
Ryu Dong-yeol (12 eps)
Cha Si-won
Yang Jae-seon (12 eps)
Lee Sang-hong
Do In-bum (12 eps)
Kim Hieora
Boss Yong (12 eps)
Lee Seung-heon
Kim Kyung-joon (12 eps)
Sung Ji-ru
Kwak Bong-pil (12 eps)
Lee Jin-hong
Yang Jae-seon (12 eps)
Lee Hwa-ryong
Kim Kye-shik (12 eps)
Shin Ju-hwan
Heo Jong-goo (12 eps)
Cho Dong-in
Jung Chan-ki (12 eps)
Won Hyun-jun
Andrei Kang (12 eps)
Im Gi-hong
Do Yu-gon (12 eps)
Park Se-jun
Nam Eun-seok (12 eps)
Choi Kwang-je
Yum Geun-soo (12 eps)
Han Gi-joong
Kim Sung-ho (12 eps)
Yoo Jeong-ho
Ju Dae-won (12 eps)
Jung Sung-il
Shin Joo-hyuk (12 eps)
Kim Jung-hoon
Jeong Il-su (12 eps)
Nam Do-yoon
Ryu Soo Yeol / In Jae Hui [Young] (5 eps)
Lee Seo-An
Jung Yoo Na (4 eps)
Nam Woo-joo
Jung Hyun Soo (4 eps)
Park Min-sang
Shim Jung Hoon (4 eps)
Yoon Tae-in
[Detective] (3 eps)
Kim Si-ha
Jung In Seon [Yoo Na's daughter] (3 eps)
Lee Joo-hyun
Tak Min Soo (3 eps)
Lee Kyeong-uk
Shim Sang Ho (3 eps)
Park Ji-hong
Su Jan (3 eps)
Lee Jong-yoon
Lim [Detective] (3 eps)
Park Seo-yeon
Baek Young Joo (3 eps)
Kim Mi-hwa
[Eun Seok's mother] (3 eps)
Jung Yoon-suk
Jung Yoon Ho (3 eps)
Yoo Seung-il
[General contractor] (2 eps)
Im Sung-jae
President Ma [Mobile funeral home boss] (2 eps)
Kim Kyu-baek
[Yu Na's brother] (2 eps)
Im Seong-mi
Yoon Yi Seul (2 eps)
Park Seon-Hu
Ryu Dong Yeol [Young] (2 eps)
Kim Hyeon-mok
[Witness] (2 eps)
Han Ji-ho
[Commissioner's nephew] (2 eps)
Kim Goo-young
[Gang member] (2 eps)
Lee Joo-young
Park Yi Hyun (2 eps)
Kim Yong-Han
Shim Soo Hoon [Jung Hoon's brother] (2 eps)
Shin Mun-sung
[Soo Yeol's father] (2 eps)
Yi Seo
Ki So Yeon (2 eps)
Yang Dae-hyeok
Park Sung Gwan (2 eps)
Jang Jun-nyeong
Sung Bok Joon (2 eps)
Kim Young-Joo
Shin Joo Hyuk [Painter] (2 eps)
Park Jong-geun
[Nurse] (2 eps)
Kim Sun-hoa
Dr. Hong Suk Kyung [Psychiatrist] (2 eps)
Han Sang-chul
[Fight spectator] (1 eps)
Ji Seong-geun
[Apartment building staff] (1 eps)
Choi Yi-sun
[Bathhouse cashier] (1 eps)
Kim Jae-man
Kim Dong Gyun [Police officer] (1 eps)
Nam Jeong-woo
[Police officer] (1 eps)
Lee Jae-Eun
[Landlord] (1 eps)
Lee Jung-yeol
[Apartment security guard] (1 eps)
Kang Jeong-im
[Yoo Na's neighbor] (1 eps)
Park Yong
[Disciplinary hearing officer] (1 eps)
Park Sang-hyeok
[Disciplinary hearing officer] (1 eps)
Park Seon-ju
Mrs. Do (1 eps)
Kim Moon-ho
[Street cleaner] (1 eps)
Seol Chang-hee
[NFS technician] (1 eps)
Park Yu-mil
[Dong Yeol's girlfriend] (1 eps)
Lee Dong-kyu
[TVC reporter] (1 eps)
Jeon Jun-woo
[Attorney] (1 eps)
Kim Nam-jin
[Dream Youth shelter director] (1 eps)
Kim Won-suk
[Detective] (1 eps)
Yoon Dae-yeul
[Beaten gang member] (1 eps)
Gyeong Gi-hyeon
[Suspect] (1 eps)
Yum Jung-Goo
[Gyeong Jun's father] (1 eps)
Min Jung-sup
[Detective] (1 eps)
Hong Seong-gwan
[Friend of witness] (1 eps)
Choi Kyo-sik
[Junkyard worker] (1 eps)
Joo Yeon-A
[Rehab center nurse] (1 eps)
Shin Joo-hyup
Woo Hyeok Jin (1 eps)
Kim Shin-rock
[Prisoner] (1 eps)
Han Sa-myeong
[Junkyard guy] (1 eps)
Shin Na-ra
[Gang member] (1 eps)
Noh Jeong-hwan
[Eyes Candy cashier] (1 eps)
Park Se-in
[Nurse] (1 eps)
Kim Bi-bi
[Teacher] (1 eps)
Hong Je-In
Ko Ga Young (1 eps)
Lee Jae-Hak
[Student bully] (1 eps)
Lee Ji Wan
[Student bully] (1 eps)
Gu Da-song
[Student bully] (1 eps)
Lee Jon-Seung
[Student bully] (1 eps)
Seo Jung-hoo
[Policeman] (1 eps)
Kim Ik-tae
Keum Young Soo [Attorney] (1 eps)
Jang In-ho
[Detective] (1 eps)
Oh Ki-hwan
[Detective] (1 eps)
Bae Bo-ram
[Social worker] (1 eps)
Jeong Seon-cheol
[Drug dealer] (1 eps)
Kim Chil Doo
[Motorcyclist] (1 eps)
Eom Ji-man
[Police officer] (1 eps)
Jeong Doo-won
[Host bar owner] (1 eps)
Lee Dong-yong
[Jung Hoon's uncle] (1 eps)
Kim Yong-jin
[NFS medical examiner] (1 eps)
Lee Ha-nui
[Psychiatric patient] (1 eps)
Jo Kyung-hyun
[Psychiatric patient] (1 eps)
Park Ki-ryung
Kang Sung Dae (1 eps)
Ma Jeong-pil
[Attorney] (1 eps)