Seon-o asks Yo-han to spy on his behalf. Su-yeon investigates the death of Yo-han’s grandmother and its connection to an officer’s suicide.
Kang Ha-neul
Kim Yo-han
Lee You-young
Oh Soo-yeon
Heo Sung-tae
Yoon Byung-wook
Kim Sang-ho
Mok Jin-hyung
Kang Young-suk
Jang Seon-oh
Park Seong-geun
Hong Sang-wook
Kang Shin-hyo
Hong Jae-seon
Jeong Man-sik
Yang Hwa
Kim Si-eun
Park Ro-sa
Sung Ji-ru
Heo Sang-soo
Cha Yeob
Kim Gil-sang
Yoon Byung-hee
Kim Woo-sang
Lee Dong-won
[Seongju Prison inmate #1321]
Moon Sung-keun
Do Won Bong [Seongju Prison inmate]
Heo Dong-won
Yang Jun ['Skin Nation' chairman]
Choi Dae-hoon
No Seung Hwan / Nam Dae Moon [Seongju Prison inmate]
Han Jae-yeong
Jo Hae Do [Bukyeongpa gang]
Oh Tae-kyung
Woo Sang Ki [Goldman Casino's accountant / Min Ho's father]
Choi Moo-seong
Song Doo Cheol [Bukyeongpa gang]
Han Kyu-won
Eom Ik Soo [Bukyeongpa gang]
Jo Hee-bong
Ryu Tae Hoon [Seongju Prison inmate]
Lee Ha-yul
Kim Woo Jae [Prosecutor]
Kim Min-seung
Woo Min Ho [Sang Ki's son]
Yoo Ha-bok
Kim Jung Gyu [Prosecutor]
Kim Byung-cheol
[Sinseondong elder]
Seo Myung-chan
[Sinseondong elder]
Lee Yang-hee
[Sinseondong elder]
Moon Jong-won
Kim Sung Bum [Seongju Prison staff]
Park Joong-geun
Park [Seongju Prison guard]
Kim Kyu-baek
[Seongju Prison inmate #1369]
Hwang Dae-woong
[Seongju Prison inmate #8934]
