Whispering Corridors 6: The Humming

After being appointed as the vice-principal of her alma mater, Eun-hee becomes plagued by hallucinations. Branded a troublemaker by the teachers, Ha-young hears strange sounds coming from the school's dilapidated restroom.

• 
  Lee Mi-young

• 
  Kim Seo-hyung
  Eun-hee
• 
  Kim Hyeon-soo
  Ha-young
• 
  Choi Ri
  So-yeon
• 
  BIBI
  Young Eun-hee
• 
  Seo Hye-won
  Mi-sook
• 
  Park Se-hyun
  Jae-yeon
• 
  Lee Ji-won
  Ye-ji
• 
  Jang Won-hyung
  Park Yeon-mook
• 
  Kwon Hae-hyo
  Bae Kwang-mo
• 
  Lee Joo-sil
  Grandmother
• 
  Chae Won-bin
  Classmate
• 
  Ha Mheen
  Kim Jung-yeon
• 
  Kim Sung-nyeo
  Seok Gong-nyeo
• 
  Shin Yeon-mi
  Choi Ji-hee
• 
  Min Chae-yeon
  Kim Hong-ran
• 
  Park Yun-ho
  Nam Sang-taek
• 
  Sung Gyu-chan
  Police