A former Naval officer with a dark past must face off against an insurgent with a sound sensitive bomb.
Unfortunately the movie Decibel is not yet available on HBO Max.
| Directing | Hwang In-ho | Director |
| Writing | Hwang In-ho | Writer |
| Writing | Lee Jin-hoon | Writer |
| Production | Lee Jin-hoon | Executive Producer |
| Production | Kim Yong-sun | Producer |
| Production | Cho Yoon-mi | Producer |
| Crew | Kim Cha-i | Stunts |
| Camera | Park Jong-cheol | Director of Photography |
| Lighting | Ok Seong-jun | Lighting Director |
| Editing | Kim Chang-ju | Editor |
| Sound | Mok Young-jin | Original Music Composer |
| Art | Kim Kyung-ho | Production Design |
| Art | Nam Seong-ju | Set Decoration |
| Art | Kim Yun-suk | Props |
| Costume & Make-Up | Hong Su-hee | Costume Design |
| Costume & Make-Up | Heo Jeong-im | Makeup & Hair |
| Sound | Han Cheol-hui | Production Sound Mixer |
| Sound | Park Yong-gi | Sound Supervisor |
| Visual Effects | Jeon Gun-ik | Special Effects Supervisor |
| Crew | Park Young-sik | Martial Arts Choreographer |
| Editing | Kim Yeol-hoe | Digital Intermediate |
| Production | Kang Mun-seok | Executive Producer |
| Camera | Eom Si-u | Director of Photography |
| Visual Effects | Kim Seong-hwan | VFX Supervisor |
| Camera | Jang Gyeong-seon | Still Photographer |
| Sound | Jang Cheol-ho | Sound Effects Designer |
| Crew | Lee Tae-yeong | Martial Arts Choreographer |
| Art | Yoon Hwang-jik | Special Props |
| Camera | Lee Geun-woo | Grip |
