I Saw the Devil— Full Cast

Lee Byung-hun

as Kim Soo-hyeon

Choi Min-sik

as Kyung-chul

Jeon Kuk-hwan

as Squad Chief Jang

Cheon Ho-jin

as Section Chief Oh

Oh San-ha

as Joo-yeon

Kim Yoon-seo

as Se-yeon

Nam Bo-ra

as Section Chief's Daughter

Lee Jun-hyuk

as NIS Agent

Yoon Chae-yeong

as Nurse Han Song-i

Choi Moo-seong

as Tae-joo

Kim In-seo

as Se-jung

Kim Kap-soo

as Planning Team Deputy Head

Um Tae-goo

as Detective

Choi Jin-ho

as Planning Director

Mi-nam Jeong

as Gangster in Taxi