Marine Boy is the story of a former national swimmer who finds himself in debt, and out of desperation is employed as a mule by a gangster boss, smuggling drugs by sea.
| Directing | Yoon Jong-seok | Director |
| Writing | Yoon Jong-seok | Writer |
| Camera | Kim Ji-yong | Director of Photography |
| Production | Won Dong-yeon | Producer |
| Production | Kim Ho-sung | Co-Producer |
| Sound | Lee Seung-chul | Sound Supervisor |
| Sound | Jung Jae-il | Original Music Composer |
| Editing | Kim Chang-ju | Editor |
| Art | Jang Seok-jin | Art Direction |
| Art | You Cheong | Props |
| Editing | Steve M. Choe | Editor |
| Lighting | Shin Sang-yeul | Lighting Director |
| Costume & Make-Up | Ham Hyun-joo | Costume Design |
| Production | Jang Jin-seung | Co-Producer |
| Crew | Park Jung-ryul | Martial Arts Choreographer |
| Sound | Lee Sang-joon | Production Sound Mixer |
| Crew | Lee Sang-ha | Stunts |
| Visual Effects | Lee Hee-kyoung | Special Effects Supervisor |
| Costume & Make-Up | Yoon Hwang-jik | Special Effects Makeup Artist |
