Gong Yoo
Kang In-ho
Gong Yoo
Kang In-ho
Jung Yu-mi
Seo Yoo-jin
Kim Hyun-soo
Kim Yeon-doo
Jung In-seo
Jin Yoo-ri
Baek Seung-hwan
Jeon Min-soo
Jang Gwang
Principal / Principal's Brother
Kim Joo-ryoung
Yoon Ja-ae
Kim Min-sang
Park Bo-hyeon
Lim Hyun-sung
Young-hoon
Jeon Kuk-hwan
Attorney Hwang
Choi Jin-ho
Prosecutor
Kwon Hong-suk
Judge
Uhm Hyo-seop
Police Officer Jang
Park Hye-jin
Principal's Wife
Kim Ji-young
In-ho's Mother
Kim Ji-young
Sol-yi
Uhm Ji-sung
Young-soo
Lee Sang-hee
Auto Repair Shop Owner
Nam Myung-ryeol
Professor Kim Jung-woo
Park Kyoung-hee
Hostess 2
Jang So-yeon
Courtroom Sign Language Interpreter
Hong Seok-yeon
School Custodian
Heo Jae-ho
Broadcasting Station PD
Jung Hyung-suk
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
Hwang Dong-hyuk
Screenplay
Bae Jeong-min
Producer
Kim Hyung-seok
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
Sound Supervisor
Do Young-hoon
Production Supervisor
Park Jung-bae
Assistant Director
Jeong Ji-young
Sound Effects Designer
Kim Do-hee
Makeup & Hair