Directed by
| Kim Jee-woon | ... | (as Jee-woon Kim) |
Writing Credits (in alphabetical order)
| Kim Jee-woon | ... | (as Jee-woon Kim) |
| Jin A Kim | ||
| Lina Suh | ... | (story editor) |
| Koh Young-Jae | ||
Cast (in credits order)
| Lee Sun-kyun | ... | Sewon Koh | |
| Lee Yoo-young | ... | Jaeyi Jung (as Yoo-Young Lee) | |
| Park Hee-soon | ... | Kangmu Lee (as Hee-soon Park) | |
| Seo Ji-hye | ... | Lieutenant Choi | |
| Lee Jae-won | ... | Namil Hong | |
| Moon Sung-Keun | ... | Dr. Myung (as Moon Seong-Geun) | |
| Teo Yoo | ... | Secretary Yoon | |
| Rest of cast listed alphabetically: | |||
 |
Mina An | ... | Yoojin |
| June Yoon | ... | Dr. Myung (voice) | |
Produced by
| Samuel Yeunju Ha | ... | executive producer |
| Kim Jee-woon | ... | executive producer (as Jee-woon Kim) / executive producer (as Jee-woon Kim) (showrunner) |
| Jamie Yuan Lai | ... | executive producer |
| Antonio H.W. Lee | ... | executive producer |
| Joy Jinsoo Lee | ... | executive producer |
Music by
| Mowg | ||
Second Unit Director or Assistant Director
| Pil-sung Yim | ... | second unit director |
Sound Department
| Jesús M. Rodríguez | ... | recording assistant (english version) |
Visual Effects by
| Jinhee Kim | ... | visual effects producer |
| Soo Jin Lee | ... | pipeline td |
Casting Department
| Allycia Atania | ... | executive in charge of casting |
Music Department
| Wani Han | ... | composer: additional music |
Additional Crew
| Sejin Park | ... | epk producer |
| Yoonjung Song | ... | epk production manager |
