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Dr. Brain
Chapter 4
Directed by
Kim Jee-woon
TV-MA
S1 • E4
Nov 24, 2021
53m
7.2
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Heejin, the daughter of a man connected to Jaeyi, sheds new light on Sewon's home life and shares more details about what happened to Doyoon.
More
Where to Watch Chapter 4
Apple TV Plus Amazon Channel
Subscription
Apple TV+
Subscription
Cast of Chapter 4
Lee Sun-kyun
Koh Se-won
Park Hee-soon
Lee Kang-mu
Seo Ji-hye
Lieutenant Cho
Lee You-young
Jung Jae-yi
Lee Jae-won
Hong Nam-il
Teo Yoo
Secretary Yoon
Cha Hee
Dr. Hahn
Um Tae-goo
Lee Tae-goo
Kim Jee-woon
Director / Writer / Producer
Kim Jin-a
Writer
Koh Young-Jae
Writer
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