Ahn Bo-hyun will play the fun-loving and ignorant chaebol III and parachute detective Chen Yi-soo.The male protagonist Chen Yixiu is a Chaebol III detective. He is the most fun-loving person among the Chaebol III, and he is also an airborne soldier among the criminal police.With his unique investigation method of using money against money and power against power, he showed an unprecedented appearance as a criminal policeman, and also showed his naturally funny and sharp charm.

Park Ji-hyun plays the heroine Lee Kang-hyun in the drama. She is the first and strongest female leader of the crime team. She is a veteran detective who is keen on investigating cases and risking her life to arrest criminals. She occasionally shows off her cute girly charm, creating an unstoppable scene.The same sense of contrast.

In addition, Kang Sang-jun (playing Park Joon-young) and Kim Shin-bi (playing Choi Kyung-jin) will be active as members of the powerful 1st team.Jung Ga-hee (playing Yoon Ji-won) is a forensic scientist at the National Institute of Scientific Research.

Jang Hyun-sung (playing Chen Myung-cheol), Jeon Hye-jin (playing Jo Hee-ja), Kwon Hae-hyo (playing Lee Hyung-joon), Yoon Yoo-sun (playing Go Mi-sook), Kim Myung-soo (playing Choi Jung-hoon) and others will display their internal skills.Kwak Shi Yang (playing Chen Shengzhou) will help - Flex x Cop - with a special appearance.