| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Kim Eun-sook | Crew | Writing | Writer, Creator | 16 |
 An Gil-ho | Crew | Directing | Director, Creator | 16 |
 Kim Jun-seok | Crew | Sound | Original Music Composer | 16 |
Yu Jae-gyu | Crew | Lighting | Lighting Director | 16 |
Jung Se-rin | Crew | Sound | Original Music Composer | 16 |
Jang Jong-kyung | Crew | Camera | Director of Photography | 16 |
Han Ji-woo | Crew | Editing | Editor | 16 |
 Paul Kim | Crew | Sound | Theme Song Performance | 16 |
Yoon Ha-lim | Crew | Production | Executive Producer | 16 |
Yang Hyeon-seo | Crew | Costume & Make-Up | Costume Design | 16 |
Kang Pooung | Crew | Crew | Martial Arts Choreographer | 16 |
Kim Young-kyu | Crew | Production | Executive Producer | 16 |
Son Seung-hyeon | Crew | Visual Effects | VFX Supervisor | 16 |
 Song Hye-kyo | Cast | Actress | Moon Dong-eun | 16 |
 Lee Byung-joon | Cast | Actor | Lee Gil-seong | 4 |
 Lee Hae-yeong | Cast | Actor | Shin Yeong-jun | 11 |
 Son Kang-gook | Cast | Actor | Choi Dong-gyu | 5 |
 Shin Yeon-sook | Cast | Actress | Tae-uk's mother | 2 |
 Hwang Kwang-hee | Cast | Actor | DJ | 1 |
 Son Ji-na | Cast | Actress | Hong Yeong-ae | 11 |
 Lim Ji-yeon | Cast | Actress | Park Yeon-jin | 16 |
 Jung Moon-sung | Cast | Actor | Jisan prisoner | 1 |
 Kim Gun-woo | Cast | Actor | Son Myeon-go | 16 |
 Kim Jung-young | Cast | Actress | Park Sang-im | 8 |
 Son Sook | Cast | Actress | Landlord | 8 |
 Park Ji-a | Cast | Actress | Jeong Mi-hee | 7 |
 Yeom Hye-ran | Cast | Actress | Kang Hyeon-nam | 16 |
 Lee Moo-saeng | Cast | Actor | Kang Yeong-cheon | 6 |
 Kwon Beom-taek | Cast | Actor | Lawyer Choi | 4 |
 Park Sung-hoon | Cast | Actor | Jeon Jae-joon | 16 |
 Choi Soo-in | Cast | Actress | Lee Sun-a | 5 |
 Heo Dong-won | Cast | Actor | Teacher Chu | 6 |
 Ahn So-yo | Cast | Actress | Kim Gyeong-ran | 10 |
 Kang Gil-woo | Cast | Actor | Kim Soo-han | 3 |
 Shin Ye-eun | Cast | Actress | Park Yeon-jin (young) | 7 |
 Cha Joo-young | Cast | Actress | Choi Hye-jeong | 16 |
 Ryu Sung-hyun | Cast | Actor | Lee Seok-jae | 5 |
 Jung Ji-so | Cast | Actress | Moon Dong-eun (young) | 10 |
 Kim Wang-geun | Cast | Actor | Jeong Mi-hee's boyfriend | 1 |
 Lee Jung-ok | Cast | Actor | Tae-uk | 1 |
 Lee Do-hyun | Cast | Actor | Joo Yeo-jeong | 16 |
 Oh Min-ae | Cast | Actress | Ha Do-yeong's mother | 3 |
 Choi Gwang-il | Cast | Actor | Joo Seong-hak | 4 |
 Park Yoon-hee | Cast | Actor | Kim Jong-mun | 3 |
 Kim Nam-jin | Cast | Actress | Yoon So-hee's mother | 2 |
 Jung Sung-il | Cast | Actor | Ha Do-yeong | 16 |
 Oh Ji-yul | Cast | Actress | Ha Ye-sol | 13 |
 Song Ji-woo | Cast | Actress | Choi Hye-jeong (young) | 5 |
 Kim Sun-hoa | Cast | Actress | Lee Sa-ra's mother | 3 |
 Gu Da-song | Cast | Actress | Seul-gi | 1 |
 Kim Hieora | Cast | Actress | Lee Sa-ra | 16 |
 Jeon Jin-oh | Cast | Actor | Shadower | 6 |
 Lee Doo-seok | Cast | Actor | Lawyer Park | 2 |
 Bae Gang-hee | Cast | Actress | Lee Sa-ra (young) | 4 |
 Oh Kyu-taek | Cast | Actor | Dry cleaners worker | 1 |
 Lee So-e | Cast | Actress | Yoon So-hee | 4 |
 Seo Woo-hyeok | Cast | Actor | Son Myeong-o (young) | 6 |
 Song Byeong-geun | Cast | Actor | Jeon Jae-jun (young) | 5 |
 Park Sang-jong | Cast | Actor | Kim Shin-tae | 2 |
 Cho Min-wook | Cast | Actor | Kim Jong-heon | 2 |
 Song Na-young | Cast | Actress | Koo Seong-hee | 7 |
 Jeon Su-ah | Cast | Actress | Ahn Jeong-mi | 7 |
 Lee Seo-young | Cast | Actress | Kim Gyeong-ran (young) | 3 |
| Person | Type | Job | Role(s) | Episodes |
