Ancient Korea, 17th century. While the paranoid King Lee Jo of Joseon, vassal of the Qing dynasty, feels surrounded by conspirators and rebels, a dark evil emerges from the bowels of a merchant ship and the exiled Prince Lee Cheung returns to the royal court, ignoring that he will have to lead the few capable of defeating the ambitious humans and the bloody monsters who threaten to destroy the kingdom.
Unfortunately the movie Rampant is not yet available on HBO Max.
| Crew | Jeong Bong-yeon | Stunts |
| Crew | Yang Hae-gil | Stunts |
| Crew | Lee In-Seop | Stunts |
| Crew | Kim Yong-ho | Stunts |
| Crew | Lim Hyo-woo | Stunts |
| Crew | Choi Seong-kyum | Stunts |
| Art | Seo Joo-yeon | Art Direction |
| Crew | Kwon Tae-ho | Stunts |
| Crew | Lee Tae-yeong | Stunts |
| Crew | Choi Dong-hun | Stunts |
| Visual Effects | Bae Sang-min | Matte Painter |
| Camera | Pyo Sang-woo | Camera Operator |
| Crew | Moon Gwang-sik | Stunts |
| Costume & Make-Up | Choi Yoon-sun | Costume Design |
| Camera | Lee Seong-je | Director of Photography |
| Lighting | Lee Byeong-hoon | Lighting Director |
| Crew | Jeong Seong-ho | Stunts |
| Crew | Lee Tae-ho | Stunts |
| Sound | Kang Bong-sung | Production Sound Mixer |
| Crew | Kim Tae-kang | Martial Arts Choreographer |
| Visual Effects | Kim Jung-soo | VFX Supervisor |
| Art | Kim Eun-ji | Art Direction |
| Crew | Suh Jeong-woo | Stunts |
| Visual Effects | Park Eui-dong | Visual Effects |
| Directing | Kim Sung-hoon | Director |
| Writing | Hwang Jo-yoon | Screenplay |
| Sound | Lee Sung-jin | Sound Supervisor |
| Editing | Kim Sang-bum | Editor |
| Costume & Make-Up | Cho Tae-hee | Makeup & Hair |
| Editing | Kim Jae-beom | Editor |
| Art | Chae Kyoung-sun | Production Design |
| Art | You Cheong | Props |
| Camera | Mun Yong-gun | Director of Photography |
| Production | Kim Woo-taek | Executive Producer |
| Costume & Make-Up | Cho Sang-kyung | Costume Designer |
| Production | Lee Han-seung | Producer |
| Writing | Won Shin-yeon | Screenplay |
| Production | Kim Sung-hoon | Producer |
| Crew | Brandon Jung | Additional Music |
| Sound | Park In-young | Original Music Composer |
| Art | Pi Dae-seong | Special Props |
| Sound | Jeong Ji-young | Sound Effects Designer |
| Art | Kim Jung-gon | Set Dresser |
| Sound | Jung Jin-mo | Boom Operator |
