Dr. Brain

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Kim Jee-woon

Director

Lee Sun-kyun

Ko Se-won

Tae-goo Eom

Tae-goo

Hee-soon Park

Lee Kang-moo

Lee El

Dr. Hyun

June Yoon

Dr. Myung

Yoo-Young Lee

Jung Jae-yi

Jin Heo

Nam-il's mother

Mina An

Yoojin

Seo Ji-hye

Lieutenant Choi

Lee Jae-won

Namil Hong

Gi-sub Jung

Coroner

Gong Sung-Ha

Mrs. Lim (Jun-ki's wife)

Woo-jeong Oh

Se-won's mother

Garrison Michael Farquharson-Keener

Psychopath

Liz Cha

Clinic Manager

Lee Sang-Hee

Rest stop cashier

Moon Sung-Keun

Dr. Myung

Teo Yoo

Secretary Yoon

Kim Jee-woon

Writer

Jin A Kim

Writer

Lina Suh

Writer

Koh Young-Jae

Writer

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