Văn Phòng Bí Ẩn

Ko Asung Lee Mi-rye

Park Sung-woong Jong-hoon

Bae Sung-woo Kim Byeong-gook

Kim Eui-sung Kim Sang-gyu

Ryu Hyun-kyung Hong Ji-sun

Lee Chae-eun Yeom Ha-young

Sohn Su-hyun Shin Da-mi

Park Jeong-min Lee Won-suk

Oh Dae-hwan Jung Jae-il

Ki Joo-bong Detective Squad Chief

Jeon Kwang-jin Detective

Lee Chang-yong Gi-tae