The K2

Ji Chang-wook

Kim Je-ha

송윤아

Choi Yoo-jin

윤아

Ko An-na

조성하

Jang Se-joon

김갑수

Park Gwan-soo

이정진

Choi Sung-won

손태영

Ko An-na's Mother

신동미

Kim Dong-mi

박건락

Public Prosecutor

Lee Yea-eun

Jang Mi-ran

이재우

Lee Sung-kyu

Jeon Bae-soo

Joo Cheol-ho

송경철

Song Young-choon

박순천

Choi Sung-won's Mother

이철민

Park Gwan-soo's Secretary

고인범

Kook Chae-wan