 Jeon Do-yeonKim Hye-kyung | Kim Hye-kyung |
 Kim Nam-gilJung Jae-gon (Lee Young-jun) | Jung Jae-gon (Lee Young-jun) |
 Park Sung-woongPark Jun-gil | Park Jun-gil |
 Kwak Do-wonMoon Ki-beom | Moon Ki-beom |
 Kim Min-jaeMin Young-ki | Min Young-ki |
 Park Ji-hwanSohn Kyung-soo | Sohn Kyung-soo |
 Choi Young-doKim Ho-gil | Kim Ho-gil |
 Ha Ji-eunHan Ji-yoon | Han Ji-yoon |
 Kang Tae-youngKim Jin-hyung | Kim Jin-hyung |
 Ji Seung-hyunShopping Mall Owner | Shopping Mall Owner |
 Chu Gwi-jeongMysterious Woman | Mysterious Woman |
| SSong Seung-hyeonDrug User | Drug User |
| SSin Sam-bongCorner Store Owner | Corner Store Owner |
 Ji Gun-wooDrug Courier | Drug Courier |
 Yoo Ji-yeonHwang Chung-nam's Girlfriend | Hwang Chung-nam's Girlfriend |
| JJung Jae-woongKim Hyung-seok | Kim Hyung-seok |
 Oh Ha-neeSon Min-ji | Son Min-ji |
 Ha Eun-jinYoung Lady in the Business Room | Young Lady in the Business Room |
 Kang Ji-wonYoung Madam in the Business Room | Young Madam in the Business Room |
 Jeong Jae-heonPolice Officer Who Finds Hwang Choong-nam | Police Officer Who Finds Hwang Choong-nam |
 Kim Min-gyuYoung Man | Young Man |
 Lee Hak-juSung-chul | Sung-chul |
| HHwang In-joonGimpo Police Officer | Gimpo Police Officer |
 Kim Seong-hyeonMan in a Black Suit | Man in a Black Suit |
 Lee Dong-heeHyun-chul | Hyun-chul |
 Kim Chan-yiFraud Victim | Fraud Victim |
 Jang Ji-yongKaraoke Bar Customer 1 | Karaoke Bar Customer 1 |
| SSin Joon-beomKaraoke Bar Customer 2 | Karaoke Bar Customer 2 |
| CChoe Gang-cheolKaraoke Bar Customer 3 | Karaoke Bar Customer 3 |
 Park Jae-wonKaraoke Bar Customer 4 | Karaoke Bar Customer 4 |
