Kim Seung-woo

Seok

Yunjin Kim

Hui-su (as Yoon-jin Kim)

Kim Seon-a

May

Choi Min-soo

Goliath

Jung Eun-Chan

Jo

Jeon Moo-song

Dr. No Hee-Ahn

Lee Seung-chae

Police chief's secretary

Lee Ho-jae

Kim In-Soo

Jung Ho-bin

Squad leader

Kang Hyun-joong

Det. Ko-Myoung