Kang Shin-il
Han Sang-soo

Seo Gap-suk
Shim Mi-ok

Lim Jong-yun
Professor Kim

Ha Kyoung-min
Shon Gwang-min

Park Sa-rang
Young Daeun
Kang Il
Detective Park

Choi Eun-suk
Detective Kim
Kim Ho-seung
Detective Min
Yoo Tae-seon
Fellow Detective

Jeon Joon-hyeok
Han Chae-jin