Episode 4
Big Mouth – Season 1
Gong Jihoon makes a bet with Changho to find out his true identity.
Cast
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 Jeong-bok
Prisoner 5362
Heo Woong
Prisoner 1002
Jin Mo
Prisoner 6678
Lee Young-jin
Choi Man-ho
Han Gi-joong
Kim Gap-joo
Ma Jeong-pil
Doctor
Kim Bum-suk
Detective
Kim Won-suk
Detective
Shin Dong-eun
Prison Doctor
Kim Mi-ra
Patient's Guardian
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