| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Kim Eun-sook | Crew | Writing | Writer | 16 |
 Kim Jun-su | Crew | Sound | Vocals | 16 |
 Baek Sang-Hoon | Crew | Directing | Director | 16 |
 Chen | Crew | Sound | Theme Song Performance | 16 |
 Kang Min-kyung | Crew | Sound | Theme Song Performance | 16 |
 Mad Clown | Crew | Sound | Vocals | 16 |
 Lee Eung-bok | Crew | Directing | Director | 16 |
 Kim Won-suk | Crew | Writing | Writer | 16 |
Ham Yeong-hoon | Crew | Production | Producer | 16 |
 Yoo Jong-sun | Crew | Directing | Director | 16 |
 Lee Hae-ri | Crew | Sound | Theme Song Performance, Vocals | 16 |
 K.Will | Crew | Sound | Vocals | 16 |
 Yoon Mi-rae | Crew | Sound | Theme Song Performance | 16 |
 Gummy | Crew | Sound | Theme Song Performance | 16 |
 Yoo Young-eun | Crew | Directing | Assistant Director | 16 |
Kim So-yeon | Crew | Art | Production Design | 16 |
 David Lee McInnis | Cast | Actor | Argus | 16 |
 Song Hye-kyo | Cast | Actress | Kang Mo-yeon | 16 |
 Kim Byung-chul | Cast | Actor | Park Byung-soo | 16 |
 Jin Goo | Cast | Actor | Seo Dae-young | 16 |
 Kang Shin-il | Cast | Actor | Lieutenant General Yoon | 16 |
 Yoo Ah-in | Cast | Actor | Bank Clerk Uhm Hong-sik | 1 |
Jo Jae-yun | Cast | Actor | Jin Young-soo | 16 |
 Song Joong-ki | Cast | Actor | Yoo Shi-jin | 16 |
 Lee Seung-joon | Cast | Actor | Song Sang-hyun | 16 |
 Kim Ji-won | Cast | Actress | Yoon Myung-joo | 16 |
 Onew | Cast | Actor | Lee Chi-hoon | 16 |
 Choi Woong | Cast | Actor | Gong Cheol-ho | 16 |
 Jo Woo-ri | Cast | Actress | Jang Hee-eun | 16 |
 Kim Min-seok | Cast | Actor | Kim Ki-bum | 16 |
 Jeon Soo-jin | Cast | Actress | Ri Ye-hwa | 16 |
 Lee Yi-kyung | Cast | Actor | Kang Min-jae | 16 |
 Tae In-ho | Cast | Actor | Han Seok-won | 16 |
 Park Hwan-Hee | Cast | Actress | Choi Min-Ji | 16 |
 Cho Tae-kwan | Cast | Actor | Daniel Spencer | 16 |
 Joy | Cast | Actress | Joy [Red Velvet's member] | 1 |
 Hyun Jyu-ni | Cast | Actress | Doctor Pyo | 16 |
 Ahn Bo-hyun | Cast | Actor | Sergeant Im Gwang-nam | 16 |
 Irene | Cast | Actress | Irene [Red Velvet's member] | 1 |
 Seo Jeong-yeon | Cast | Actress | Nurse Ha Ja-ae | 16 |
 Seulgi | Cast | Actress | Seulgi [Red Velvet's member] | 1 |
 Wendy | Cast | Actress | Wendy [Red Velvet's member] | 1 |
 Yeri | Cast | Actress | Yeri [Red Velvet's member] | 1 |
 Park Hoon | Cast | Actor | Choi Woo-geun | 16 |
 Matthew Douma | Cast | Actor | Captain Jordan | 3 |
 Ariane Desgagnés-Leclerc | Cast | Valentine | 16 | |
 Anupam Tripathi | Cast | Actor | Man that gives the shoe to Dr. Kang | 2 |
 Derek Chouinard | Cast | U.S. Army Doctor | 1 | |
 Elena Zhernovaya | Cast | Actress | Valentine | 16 |
 Shin Dong-hoon | Cast | Actor | Agent | 16 |
 Kim Hyo Myung | Cast | Actor | Thug | 16 |
| Person | Type | Job | Role(s) | Episodes |
