An ace crisis negotiator attempts to figure out the real motivation of a man who has kidnapped two people and crack his calm demeanour.
| Actor | Role |
|---|---|
 Son Ye-jinHa Chae-yoon | Ha Chae-yoon |
 Hyun BinMin Tae-gu | Min Tae-gu |
 Kim Sang-hoAhn Hyeok-soo | Ahn Hyeok-soo |
 Jang Young-namSection Chief Han | Section Chief Han |
 Jang KwangHwang Soo-suk | Hwang Soo-suk |
 Jo Young-jinChairman Koo | Chairman Koo |
 Kim Jong-gooCEO Yoon | CEO Yoon |
 Kim Min-sangDeputy Department Head Park | Deputy Department Head Park |
 Han Gi-joongLieutenant General Son | Lieutenant General Son |
 Yoo Yeon-sooChief Moon of National Police Agency | Chief Moon of National Police Agency |
 Park Soo-youngSection Chief Choi | Section Chief Choi |
 Choi Byung-moSecretary Kong | Secretary Kong |
 Lee Hak-juPark Min-woo | Park Min-woo |
 Lee Joo-youngLee Da-bin | Lee Da-bin |
 Lee Shi-aYoo Yeon-joo | Yoo Yeon-joo |
 Lee Moon-sikTeam Leader Jung | Team Leader Jung |
 Jeong In-gyeomLee Sang-mok | Lee Sang-mok |
 Ahn Seong-bongParking Lot Janitor | Parking Lot Janitor |
 Do Yeong-seoCho-rong | Cho-rong |
 Kim Si-eunNot listed | Not listed |
 Kim Ki-hoTae-gu's Man | Tae-gu's Man |
 Choi Hong-rakSAT Team Member 9 | SAT Team Member 9 |
| GGong Kyeong-baeSAT Team Member 10 | SAT Team Member 10 |