Prison Playbook's (2017) Park Hae-soo as Berlin, veteran actor Lee Won-jong as Moscow, Flower of Evil's (2020) Kim Ji-hun as Denver, Veteran's (2015) Jang Yoon-ju as Nairobi, Team Bulldog's (2020) Park Jung-woo as Rio, Kim ji-hun as Helsinki and Champion's (2018) Lee Kyu-ho as Oslo. For the task force team, Korean-American actress Kim Yun-jin, known for her role as Sun in the TV show, Lost (2004) will be playing Seon Woo-jin, which may be the inspector's counterpart in the original series. Kim Sung-o, well-known for his supporting roles in various Korean dramas such as Secret Garden (2010) will be playing Cha Moo-hyuk. While there are many hostages in the series, two main cast members have been announced so far.