Hak-soo
Park Jeong-min
Sun-mi
Kim Go-eun
Police Officer
Shin Mun-sung
Hak-gi
Im Sung-jae
Bang-baek
Bek Hyun-jin
Patient
Kim Se-gyeom
Hye-ok
Bae Young-ran
Goo-bok
Choi Jung-hun
Rapper
Yoo Young-bin
Song Duk-ho
Gold Medal
Lee Seung-hun
Student
Park Soo-yeon
Hak-soo's Father
Jang Hang-seon
Yong-dae
Go Joon
Mi-kyung
Shin Hyun-been
Sun-mi's Father
Jeong Gyu-su
Won-joon
Kim Jun-han
Joong-sik
Jeong Seon-cheol
Sang-ryul
Bae Je-gi
Alumni
Lee Jung-hyun
Makeup & Hair
Cho Tae-hee
Director
Lee Joon-ik
Sound Supervisor
Choi Tae-young
Original Music Composer
Bang Jun-seok
Martial Arts Choreographer
Shin Young-hoon
VFX Supervisor
Cheong Jai-hoon
Colorist
Lee Hye-min
Set Decoration
Kim Nam-ho
Props
You Cheong
Huh Dong-hyuck
Writer
Editor
Kim Jung-hoon
Director of Photography
Lee Eui-tae
Production Design
Lee Jae-sung
Producer
Sean Kim
Executive Producer
Kim Jin-sun
Costume Design
Choi Mi-yeon
Dialogue Editor
Chung Min-joo
Lighting Director
Yoo Huck-jun
Still Photographer
Min Seong-ae
Boom Operator
김유진