Cast & crew
Running Wild (2006)
Directed by Kim Sung-soo Written by Kim Sung-soo, Han Ji-hoon
Cast
| Kwon Sang-woo | Jang Do-young |
| An Kil-kang | Yang Ki-taek |
| Lee Joong-moon | Lee Dong-jik |
| Jo Hyun-wu | Instructor |
| Moon Jeong-hee | Yoon Jung-min |
| Kang Seong-jin | Jo Young-chul |
| Uhm Ji-won | Kang Joo-hee |
| Yoo Ji-tae | Oh Jin-woo |
| Son Byung-ho | Yoo Kang-jin |
| Lee Han-wi | Section Chief Bang |
| Kim Se-dong | Captain Choi |
| Kim Won-jin | Dogang-pa Organization Member |
| Lee Geon-moon | Steel Gang Member |
| Choe Min | Guryongpa Gang |
| Jung Sang-cheol | Chief Prosecutor |
| Seo Jeong-gyu | Prosecutor |
| Lee Joo-sil | Do-young's Mother |
| Jung Won-joong | Chief Prosecutor |
| Ko Chang-seok | Gang Member |
| Cho Jin-woong | Guryongpa Gang Member |
| Kim Yun-seok | Ju Hyun-tae |
| Kim Yong-tae | Yoo Kang-jin |
| Park Hyuk-kwon | Fellow Detective |
| Cho Seong-ha | Trial Prosecutor |
| Son Byeong-uk | Yellow Hair |
Crew
| Kim Sung-soo | Director |
| Han Seong-gu | Producer |
| Choi Sang-muk | Director of Photography |
| Kenji Kawai | Original Music Composer |
| Kim Sung-soo | Screenplay |
| Kim Won-jin | Stunts |
| Jeong Seong-ho | Stunts |
| Jang Jin | Makeup & Hair |
| Yoon Ki-chan | Set Decoration |
| Han Ji-hoon | Screenplay |
| Ko Im-pyo | Editor |
| Joo Young-Min | Martial Arts Choreographer |