"Based on actual events that took place at Gwangju Inhwa School for the hearing-impaired, where young deaf students were the victims of repeated sexual assaults by faculty members over a period of five years in the early 2000s."
Gong Yoo
as Kang In-ho
Jung Yu-mi
as Seo Yoo-jin
Kim Hyeon-soo
as Kim Yeon-doo
Jung In-seo
as Jin Yoo-ri
Baek Seung-hwan
as Jeon Min-soo
Jang Kwang
as Principal / Principal's Brother
Kim Joo-ryoung
as Yoon Ja-ae
Kim Min-sang
as Park Bo-hyeon
Lim Hyun-sung
as Young-hoon
Jeon Kuk-hwan
as Attorney Hwang
Choi Jin-ho
as Prosecutor
Kwon Hong-suk
as Judge
Uhm Hyo-seop
as Police Officer Jang
Park Hye-jin
as Principal's Wife
Kim Ji-young
as In-ho's Mother
as Sol-yi
Uhm Ji-sung
as Young-soo
Lee Sang-hee
as Auto Repair Shop Owner
Nam Myung-ryeol
as Professor Kim Jung-woo
Park Kyoung-hee
as Hostess 2
Jang So-yeon
as Courtroom Sign Language Interpreter
Hong Seok-yeon
as School Custodian
Heo Jae-ho
as Broadcasting Station PD
Jung Hyung-suk
as Publishing Company Employee
Jeon Gun-ik
Special Effects Supervisor
Hyeon Chang-jo
Props
Mowg
Original Music Composer
Hwang Dong-hyuk
Director
Gong Ji-young
Novel
Screenplay
Bae Jeong-min
Producer
Kim Hyung-shek
Digital Colorist
Hahm Sung-won
Editor
Park Hyun-soo
Production Sound Mixer
Lim Sun-ae
Storyboard
Cho Gi-hun
Key Grip
Kim Ji-yong
Director of Photography
Rim Seung-hee
Costume Design
Park Ju-hyun
Lighting Technician
Park Eui-dong
Visual Effects
Yi Jae-min
Line Producer
Lee Seung-chul
Sound Supervisor
Chae Kyoung-sun
Production Design
Kim Byung-seo
Camera Operator
Han Myung-hwan
Do Young-hoon
Production Supervisor
Park Jung-bae
Assistant Director
Jeong Ji-young
Sound Effects Designer
Kim Do-hee
Makeup & Hair