| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Min Yeon-hong | Crew | Directing | Director | 16 |
 Sung Ji-ru | Cast | Actor | Heo Sang-soo | 16 |
 Moon Sung-keun | Cast | Actor | Do Won Bong [Seongju Prison inmate] | 16 |
 Oh Tae-kyung | Cast | Actor | Woo Sang Ki [Goldman Casino's accountant / Min Ho's father] | 16 |
 Fan Bingbing | Cast | Actress | Ms. Lam | 2 |
 Yoo Ha-bok | Cast | Actor | Kim Jung Gyu [Prosecutor] | 16 |
 Jo Hee-bong | Cast | Actor | Ryu Tae Hoon [Seongju Prison inmate] | 16 |
 Kim Sang-ho | Cast | Actor | Mok Jin-hyung | 16 |
 Jung Woong-in | Cast | Actor | [Chaebol man] | 1 |
 Bae Yong-geun | Cast | Actor | [Detective] | 1 |
 Jeong Man-sik | Cast | Actor | Yang Hwa | 16 |
 Choi Moo-seong | Cast | Actor | Song Doo Cheol [Bukyeongpa gang] | 16 |
 Lee Yang-hee | Cast | Actor | [Sinseondong elder] | 16 |
 Han Bo-reum | Cast | Actress | Annie Stevens [Macau Triads] | 1 |
 Kang Shin-hyo | Cast | Actor | Hong Jae-seon | 16 |
 Kang Ha-neul | Cast | Actor | Kim Yo-han | 16 |
 Lee You-young | Cast | Actress | Oh Soo-yeon | 16 |
 Ha Jun | Cast | Actor | Lim Hee-Soo | 1 |
 Yoo Jae-myung | Cast | Actor | Noh Young Gook [Prosecutor] | 2 |
 Han Jae-yeong | Cast | Actor | Jo Hae Do [Bukyeongpa gang] | 16 |
 Moon Jong-won | Cast | Actor | Kim Sung Bum [Seongju Prison staff] | 16 |
 Kim Eung-soo | Cast | Actor | [Prosecutor] | 1 |
 Song Jae-hee | Cast | Actor | Kim Tae Soo [Yo Han's father] | 1 |
 Ye Su-jeong | Cast | Actress | Shin Dal Soo [Yo Han's grandma] | 2 |
 Hong Seo-jun | Cast | Actor | Gu Bon Cheol [Lawyer] | 2 |
 Jo Nam-hee | Cast | Actor | [Doctor] | 1 |
 Choi Dae-hoon | Cast | Actor | No Seung Hwan / Nam Dae Moon [Seongju Prison inmate] | 16 |
 Um Chae-young | Cast | Actress | Oh Soo Yeon [Young] | 1 |
 Heo Dong-won | Cast | Actor | Yang Jun ['Skin Nation' chairman] | 16 |
 Lee Young-suk | Cast | Actor | [Monk] | 1 |
 Cha Yup | Cast | Actor | Kim Gil-sang | 16 |
 Park Jin-young | Cast | Actor | [Judge] | 1 |
 In-woo Kim | Cast | Actor | [Yakuza boss] | 1 |
 Heo Sung-tae | Cast | Actor | Yoon Byung-wook | 16 |
 Kim Ji-na | Cast | Actress | Jin Soo Min [Director / 'Skin Nation' accountant] | 16 |
 Choi Seung-Il | Cast | Actor | [Prosecutor] | 1 |
 Lee Ha-yul | Cast | Actor | Kim Woo Jae [Prosecutor] | 16 |
 Lee Sae-byeol | Cast | Actress | [Nurse] | 1 |
 Min Dae-sik | Cast | Actor | [Priest] | 2 |
 Choi Mu-in | Cast | Actor | [Team leader] | 2 |
 Kim Si-eun | Cast | Actress | Park Ro-sa | 16 |
 Kang Hak-soo | Cast | Actor | [Prosecutor's Office Admin Support staff] | 1 |
 Kim Kyu-baek | Cast | Actor | [Seongju Prison inmate #1369] | 16 |
Sung Ki-yoon | Cast | Actor | Cha Seok Hong [CEO] | 2 |
 Park Seong-geun | Cast | Actor | Hong Sang-wook | 16 |
Park Gyu-bin | Cast | [Min Ho's friend] | 1 | |
 Son Kyoung-won | Cast | Actor | Shim Jae Chul [Seongju Prison warden] | 1 |
 Yoon Byung-hee | Cast | Actor | Kim Woo-sang | 16 |
Kim Jae-il | Cast | [Poker player] | 1 | |
 Jung Chung-gu | Cast | Actor | Kim Jin Yong [Attorney] | 1 |
 Lee Chae-kyung | Cast | Actress | [Young Gook's wife] | 1 |
 Han Dae-gwan | Cast | Actor | [Urban planning director] | 1 |
Na Ho-won | Cast | Actor | [VIP poker player] | 2 |
 Choi Nam-wook | Cast | Actor | [Scrapyard man] | 2 |
 Min Eung-sik | Cast | Actor | [Introducer] | 1 |
 Yoo Yong | Cast | Actor | [Reporter] | 1 |
 Jang Jae-kwon | Cast | Actor | [Attorney] | 1 |
 Kim Won-suk | Cast | Actor | [Attorney] | 1 |
Han Sung-soo | Cast | Lee Tae Gwang [Seongju Prison inmate] | 1 | |
 Kang Yeong-seok | Cast | Actor | Jang Seon-oh | 16 |
 Han Kyu-won | Cast | Actor | Eom Ik Soo [Bukyeongpa gang] | 16 |
 Kim Gwi-seon | Cast | Actor | Chairman Suh | 2 |
Kim Do-shin | Cast | [Prosecutor] | 1 | |
Moon Ho-jin | Cast | Actor | Oh Jong Hoon | 1 |
 Kim Joon-hyung | Cast | Actor | [Seongju Prison guard] | 1 |
 Lee Keon-gu | Cast | Actor | [Jae Sun's subordinate] | 1 |
 Jeon Jun-woo | Cast | Actor | [Prosecutor] | 1 |
 Sun Yul-woo | Cast | Actor | [Seongju Prison inmate] | 1 |
 Lee Dong-won | Cast | Actor | [Seongju Prison inmate #1321] | 16 |
 Seo Myung-chan | Cast | Actor | [Sinseondong elder] | 16 |
 Jung Yong-ju | Cast | Actor | [Hacker] | 1 |
 Lim Seung-Beom | Cast | Actor | [Detective] | 1 |
 Hong Eun-jeong | Cast | Actress | [Bank teller] | 1 |
 Kim Byung-cheol | Cast | Actor | [Sinseondong elder] | 16 |
 Lee Jung-hyun | Cast | Actor | [Poker player] | 1 |
| Person | Type | Job | Role(s) | Episodes |
