Trailer
Images
 | Park Jeong-min as Hak-soo |
 | Kim Go-eun as Sun-mi |
 | Jang Hang-seon as Hak-soo's Father |
 | Go Joon as Yong-dae |
 | Shin Hyun-been as Mi-kyung |
 | Jeong Gyu-su as Sun-mi's Father |
 | Kim Jun-han as Won-joon |
 | Jeong Seon-cheol as Joong-sik |
 | Bae Je-gi as Sang-ryul |
 | Lee Jung-hyun as Alumni |
 | Shin Mun-sung as Police Officer |
 | Im Sung-jae as Hak-gi |
 | Bek Hyun-jin as Bang-baek |
 | Kim Se-gyeom as Patient |
 | Bae Young-ran as Hye-ok |
 | Choi Jung-hun as Goo-bok |
 | Yoo Young-bin as Rapper |
 | Song Deok-ho as Rapper |
 | Lee Seung-hun as Gold Medal |
 | Park Soo-yeon as Student |
 | Jo Ha-seok as Teacher |
| Ha Hyun-soo as Classmate |
| Kim Chul-hwan as Silver medal |
 | Lee Myeong-ja as Grandmother |
| Crew | |
| Shin Young-hoon | Martial Arts Choreographer |
Visual Effects | |
| Jung Jae-hoon | VFX Supervisor |
Editing | |
| Lee Hye-min | Colorist |
Art | |
| Kim Nam-ho | Set Decoration |
| You Cheong | Props |
Visual Effects | |
| Huh Dong-hyuck | VFX Supervisor |
Directing | |
| Lee Joon-ik | Director |
Sound | |
| Bang Jun-seok | Original Music Composer |
| Choi Tae-young | Sound Supervisor |
Editing | |
| Kim Jung-hoon | Editor |
Writing | |
| Kim Se-gyeom | Writer |
Camera | |
| Lee Eui-tae | Director of Photography |
Art | |
| Lee Jae-sung | Production Design |
Costume & Make-Up | |
| Cho Tae-hee | Makeup & Hair |
Production | |
| Kim Jin-sun | Executive Producer |
| Sean Kim | Producer |
Costume & Make-Up | |
| Choi Mi-yeon | Costume Design |
Sound | |
| Bek Hyun-jin | Original Music Composer |
| Chung Min-joo | Dialogue Editor |
Lighting | |
| Yoo Huck-jun | Lighting Director |
Camera | |
| Min Seong-ae | Still Photographer |
Sound | |
| Kim Yu-jin | Boom Operator |
| Kim Yong-gu | Production Sound Mixer |
Camera | |
| Jung Gwi-ho | Camera Operator |
Art | |
| Ahn Duk-jin | Art Direction |
Crew | |
| Jeong Taek-ho | Stunts |
Camera | |
| Kim Chanh-hoi | Grip |
Costume & Make-Up | |
| Kim Na-eun | Makeup Artist |
