트라이앵글

Kang Hye-Jung

Oh Sung-hye

안재욱

Ryu Sang-woo

이수경

Han Ji-young

Lee Sung-min

CEO Lee Byung-joon

Heo Jung-gyu

Detective Won

Kang Shin-il

Vice president Son

이대연

Section Chief Kim

차태현

(cameo)