| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Yoon Sung-Shik | Crew | Directing | Director | 16 |
Jung Hyung-soo | Crew | Writing | Writer, Creator | 16 |
Han Hee | Crew | Directing | Director | 16 |
 Lee Han-wi | Cast | Actor | Go Poong Ho | 16 |
 Park Won-sang | Cast | Actor | Choi Young Sik [Choel Woong's father] | 16 |
 Kim Jin-man | Cast | Actor | [Choong Sung's subordinate] | 2 |
 Ahn Jung-hoon | Cast | Actor | Go Won Geun | 16 |
 Kang Kyung-hun | Cast | Actress | Kang Yeo Jin [Cheol Woong's mother] | 16 |
 Park No-shik | Cast | Actor | [Projectionist] | 1 |
 Kim Se-dong | Cast | Actor | [Division commander] | 1 |
 Maeng Bong-hak | Cast | Actor | Chief Choi Jong Jin | 2 |
 Bae Seul-ki | Cast | Actress | Song Yeon Joo | 16 |
 Seo Beom-sik | Cast | Actor | Byun Hak Soo [CEO] | 2 |
 Jeon No-min | Cast | Actor | Hwang Chung Seong | 16 |
 Shin Yeon-sook | Cast | Actress | [Cheol Woong's ex-babysitter] | 2 |
 Jin Yi-han | Cast | Actor | Oh Man Ok | 16 |
 Han Jae-yeong | Cast | Actor | Yeom Kwang Tak | 16 |
 Do Sang-woo | Cast | Kim Hyung Joo | 16 | |
 Jang Dong-yoon | Cast | Actor | Lee Doo-hak | 16 |
 Seol In-a | Cast | Actress | Oh Jung-jin / Sophia | 16 |
 Kim Myung-soo | Cast | Actor | Lee Joong-ho | 16 |
 Jeong Ji-sun | Cast | Actor | Jang Jang Deuk | 16 |
 Seo Gwang-jae | Cast | Actor | Lee Joon Shik [Police chief] | 1 |
 Hyun Seung-hee | Cast | Actress | Ham Yang-ja | 16 |
 Lim Seung-Jun | Cast | Actor | Wool Peu [Gangster] | 16 |
Kim Bi-joo | Cast | Actress | Chae Ha Yeon | 1 |
Lee Jin-mok | Cast | [High school teacher] | 1 | |
 So Hee-jung | Cast | Actress | Mrs Jung-am | 16 |
 Ahn Soo-ho | Cast | Actor | [Hired protestor] | 1 |
 Choo Young-woo | Cast | Actor | Choi Cheol-woong | 16 |
 Jang Da-kyung | Cast | Actress | Ma Chung Ja | 16 |
 Moon Jung-dae | Cast | Actor | Geum Man Cheol [Chairman] | 1 |
 Jung Bo-min | Cast | Actress | Geum Yeon Hee | 1 |
 Kang Ji-eun | Cast | Actress | Cha Geum-ok | 16 |
 Lee Myung-ho | Cast | Actor | Kim Wan Ki | 1 |
 Jung Jae-won | Cast | Actor | CEO Yoon | 1 |
Song Tae-yoon | Cast | Kim Kil Soo | 16 | |
 Kim Jung-soo | Cast | Actor | Na Yak Kwon [Doctor] | 2 |
 Kim Joon-hyung | Cast | Actor | [Gangster] | 1 |
 Jang Young-hyeon | Cast | Actor | Yoo Young Pil | 16 |
 Ahn Dong Yeob | Cast | Actor | Jo Seon Woo | 16 |
Kim Byung Gi | Cast | Chae Dong Pal | 1 | |
 Lee Byeong-cheol | Cast | Actor | [Doctor] | 1 |
 Go Byeong-taek | Cast | Actor | [Document seller] | 2 |
 Won Choon-gyu | Cast | Actor | [Businessman] | 1 |
 Jeon Jae-Hong | Cast | Actor | [Prosecutor] | 2 |
| Person | Type | Job | Role(s) | Episodes |
