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Changho is in a mental hospital. Will Changho be able to hide his identity in a state of confusion?
Lee Jong-suk
Park Changho
Yoona
Go Miho
Kim Ju-hun
Choi Doha
Kwak Dong-yeon
Jerry
Yang Kyung-won
Gong Jihoon
Ok Ja-yeon
Hyeon Joohee
Oh Eui-sik
Kim Soontae
Kim Jeong-hyeon
Jung Chaebong
Lee Yoo-jun
Han Jaeho
Oh Ryoong
Lee Doogeun
Yoon Seok-hyun
Cha Seungtae
Park Hoon
Seo Jaeyoung
Kim Kyu-seon
Ashley Kim
Jang Hyuk-jin
Choi Jungrak
Kim Sun-hoa
Park Miyoung
Park Se-hyun
Jang Heejoo
Jeong Jae-seong
Park Yoongab
Kang Hyung-wook
No Bak
Lee Ki-young
Go Gikwang
Kim Dong-won
Gan Soocheol
Hong Ji-hee
Jang Hyejin
Song Gyeong-cheol
Yang Choonsik
Yoo Tae-joo
Tak Gwangyeon
Jeon Kuk-hwan
Chairman Kang Seonggeun
Lee Seung-Hyung
Chairman Kang's secretary
Han Dong-ho
Secretary Jo
Jung Yeon
Kim Gyeongsook
Lee Chang-jik
Choi Haesoo
Lee Seo-An
Cha Seungtae's wife
Kim Kyu-na