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| Lee Sung-Min | Jin Goo | Kyung Soo-Jin | Lee Hak-Joo |
| Kim Taek-Rok | Kook Jin-Han | Lee Sung-A | Son Kyung-Chan |
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| Kim Hong-Fa | Kim Tae-Hoon | Yoo Seung-Mok | Kim Min-Jae | Park Joong-Geun |
| Seo Gwang-Su | Woo Hyun-Seok | Detective Squad Chief Bae | Detective Han | Detective Kwak |
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| Hong A-Ron |
| Detective Ko |
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| Ko Kyu-Pil | Kim Jae-Bum | Lee Moo-Nyoung |
| Manager Gong | Yang Ki-Tae | resident (ep.1) |
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| Yoon Je-Moon | Oh Dae-Hwan | Song Young-Chang | Kwon Tae-Won | Kang Shin-Koo |
| Mr. Cheon | Ma Sang-Gu | hospital director | city councillor | CEO Joo |
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| Jang Myung-Kab | Seo Jung-Yeon |
| CEO Shin | Oh Hye-Sung |
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| Kwon Hyuk-Bum | Choi Soo-Min | Kim Bum-Joon | Na Ho-Won | Hwang Jung-Yoon |
| Antenna (ep.1) | Yeon-Sim (ep.1) | Cashier Ji-Min (ep.1) | security guard (ep.1) | saleswoman (ep.1) |
Additional Cast Members:
