cast
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Ji Sung
Cha Do-hyun / Shin Se-gi
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Hwang Jung-eum
Oh Ri-jin
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Park Seo-jun
Oh Ri-on
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Oh Min-suk
Cha Ki-joon
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Kim Yoo-ri
Han Chae-yeon
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Kim Young-ae
Seo Tae-im
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Shim Hye-jin
Shin Hwa-ran
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Kim Yong-geon
Cha Geon-ho
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Ahn Nae-sang
Cha Joon-pyo
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Myung Se-bin
Min Seo-yeon
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Ko Chang-seok
Dr. Seok Ho-pil
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Choi Won-young
Chief Ahn Gook
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Kim Hee-jung
Ji Soon-young
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Park Jun-gyu
Oh Dae-o
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Kim Na-woon
Yoon Ja-kyung
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Kim Il-woo
Cha Young-pyo
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Kim Hyun-joo
Baek Jin-sook
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Baek Chul-Min
Alex Kang
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Kim Hyeong-beom
Chief Choi
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Cho Chang-geun
Kang In-kyu
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Kang Bong-sung
Shin Seon-jo
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Choi Hyo-eun
Joo Mi-ra
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Kang Soo Jin
Lee Young-seon
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Seo Yi-an
Hong Ji-sun
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Kim Seul-gi
Heo Sook-hee
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Lee Si-eon
Dr. Park Min-jae
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Cho Yoon-ho
Leather Jacket Biker
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Yoon Joo
Jennifer
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Matthew Douma
Jennifer's Father
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Jung Eun-pyo
Psychiatrist
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Kan Mi-youn
Girlfriend
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Woo Hyeon
Mental Patient
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Koo Jun-yup
Club Paradise DJ
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Heo Ji-woong
Omega's Editor
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Carson Allen
Cha Do Hyun‘s high school classmate
