Cast and credits of I Saw the Devil

Directed by

Jee-woon Kim

Starring

Byung-hun Lee
Soo-hyeon / Joo-yeon's fiancé

Min-sik Choi
Jang Kyung-chul

Gook-hwan Jeon
Squad Chief Jang

Chun Ho-jin
Section Chief Oh (as Ho-jin Chun)

San-ha Oh
Joo-yeon

Moo-Seong Choi
Tae-joo (as Moo-Seong Choi)

In-seo Kim
Se-jung

Kap-su Kim
Planning team deputy head

Jun-hyuk Lee
Agent (as Lee Joon-Hyeok)

Jin-ho Choi
Planning director

Seo-yeon Park
Woman at pension (as Park Seo-Yeon)

Chae-yeon Kim
Joo-yeon's cousin (as Chae-Yeon Kim)

Ji-yoon Jeong
Junior high female student

Bo-ra Nam
Section chief's daughter (as Bo-ra Nam)

Ha Seung-Ri
Female high school student at harbor

Young Sun Kim
Nun

Written by

Jee-woon Kim
adaptation

Hoon-jung Park
screenplay