The Silenced

A sickly girl Ju-ran transfers to a new sanitorium boarding school to regain health. But she discovers that students are disappearing and notices abnormal changes happening to her body. She suspects the school for what's happening and tries to discover what secret is hidden.

• 
  Lee Hae-young

• 
  Park Bo-young
  Joo-ran
• 
  Uhm Ji-won
  Kato Sanae
• 
  Park So-dam
  Yeon-deok
• 
  Kong Ye-ji
  Yuka
• 
  Sim Hee-seop
  Kenji
• 
  Go Won-hee
  Shizuko
• 
  Keum Sae-rok
  Naoko Oyama
• 
  Joo Bo-bi
  Kihira
• 
  Park Seong-yeon
  Counselor
• 
  Park Joo-hee
  Joo-ran's Mother
• 
  Park Se-in
  Eguchi
• 
  Mok Gyu-ri
  Akimi Kimoto
• 
  Kim Dong-hyun
  Driver
• 
  Lee Ye-eun
  Center
• 
  Kim Soo-bin
  Kokomi Yasuda
• 
  Cho Ryun
  Home economics teacher
• 
  Gong Teyu
  Japanese soldier (voice)