Onderschat ze niet! Een groep dakloze mannen werkt hard en traint met toewijding om mee te doen aan een internationaal toernooi, ondanks een knorrige coach.
| Directing | 이병헌 | Director |
| Writing | 이병헌 | Writer |
| Sound | 김태성 | Original Music Composer |
| Production | Kim Chang-yeol | Executive Producer |
| Camera | Noh Seung-bo | Director of Photography |
| Editing | Nam Na-young | Editor |
| Sound | On Se-woong | Production Sound Mixer |
| Art | Lee Jong-geon | Production Design |
| Crew | Yun Seok-jin | Martial Arts Choreographer |
| Sound | Lee Sung-june | Sound Supervisor |
| Costume & Make-Up | Yang Jin-sun | Costume Design |
| Art | Nam Seong-ju | Set Decoration |
| Art | Oh Jin-seok | Props |
| Costume & Make-Up | Lee Myeung-eun | Makeup & Hair |
| Costume & Make-Up | 황효균 | Special Effects Makeup Artist |
| Costume & Make-Up | 곽태용 | Special Effects Makeup Artist |
| Visual Effects | Park Kyoung-soo | Special Effects Supervisor |
| Visual Effects | Kim Dae-jun | VFX Supervisor |
| Sound | Kim Young-ho | Sound Supervisor |
| Production | Park Yu-gyeong | Producer |
| Lighting | Park Sung-chan | Lighting Director |
| Lighting | Lee Yu-seok | Lighting Director |
| Editing | Kim Yeol-hoe | Digital Intermediate |
| Camera | Song Gyeong-seop | Still Photographer |
| Sound | Choi Jung-in | Original Music Composer |
| Production | Hong Jeong-in | Executive Producer |
| Directing | Baek Sang-il | Assistant Director |
| Directing | Kim Nam-gyu | Assistant Director |
| Production | Hong Se-hyun | Executive Producer |
| Production | Lee Jong-seok | Producer |
| Camera | Jeon Young-wook | Still Photographer |
| Camera | Park Ji-seul | Grip |
| Camera | Seo Dong-gi | Camera Operator |
| Visual Effects | Kim Jung-min | VFX Supervisor |
| Visual Effects | Han Jae-ho | Visual Effects |
| Camera | 김대성 | "B" Camera Operator |
