| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Jo Hwa-seong | Crew | Art | Production Design | 12 |
Shin Min-kyung | Crew | Editing | Editor | 12 |
 Mowg | Crew | Sound | Music | 12 |
Teo Lee | Crew | Camera | Director of Photography | 12 |
 Lee Nam-kyu | Crew | Writing | Writer, Creator | 12 |
 JQ Lee | Crew | Directing | Director, Creator | 12 |
Hong Jang-pyo | Crew | Visual Effects | Special Effects Supervisor | 12 |
Kim Chang-seop | Crew | Sound | Sound | 12 |
Moon Yong-chan | Crew | Production | Production Director | 12 |
Yoon Kyung-hyun | Crew | Lighting | Lighting Director | 12 |
Lee Eun-ju | Crew | Sound | Music | 12 |
Cho Tae-hee | Crew | Costume & Make-Up | Special Effects Makeup Artist, Makeup & Hair | 12 |
Oh Bo-hyun | Crew | Writing | Co-Writer | 12 |
Ko Hee-jung | Crew | Costume & Make-Up | Costume Design | 12 |
 Park Cheol-su | Crew | Production | Producer | 12 |
Park Jin-ho | Crew | Editing | Digital Intermediate | 12 |
Park Gyu-bin | Crew | Art | Production Design | 12 |
 Kim Nam-su | Crew | Directing | Co-Director | 12 |
Lee Tae-ho | Crew | Crew | Stunts | 12 |
Kim Da-hee | Crew | Writing | Co-Writer | 12 |
 Jo Dal-hwan | Cast | Actor | Kim Sung-sik | 1 |
 Park Bo-young | Cast | Actress | Jung Da-eun | 12 |
 Jeon Bae-soo | Cast | Actor | Yoon Man-cheon | 12 |
 Yeon Woo-jin | Cast | Actor | Dong Go-yun | 12 |
 Hwang Young-hee | Cast | Actress | Da-eun's Mother | 1 |
 Lee Jung-eun | Cast | Actress | Song Hyo-sin | 12 |
 Jang Dong-yoon | Cast | Actor | Song Yu-chan | 12 |
 Lee Sang-hee | Cast | Actress | Park Soo-yeon | 12 |
 Lee Ju-won | Cast | Actor | Kim Sung-Sik’s boss | 1 |
 Cha Mi-kyeong | Cast | Actress | Lee Gyeong-sil | 1 |
 Lee Seo-hwan | Cast | Actor | Kim Sun-Sik’s brother | 1 |
 Park Seong-yeon | Cast | Actress | Internal Medicine Head Nurse | 1 |
 Park Ji-yeon | Cast | Actress | Hong Jung-ran | 12 |
 Jung Woon-sun | Cast | Actress | Oh Ri-na | 1 |
 Park Ki-seon | Cast | Actor | Patient | 1 |
 Yoo In-soo | Cast | Actor | Ji Seung-jae | 2 |
 Lee Jeong-eun | Cast | Actress | Song Yu-Chan’s mom | 1 |
 Yang Hee-woo | Cast | Mr. Yang | 1 | |
 Lee Soo | Cast | Actress | (Oh Ri-na Stand-in Actress) | 1 |
 Roh Jae-won | Cast | Actor | Kim Seo-wan | 12 |
 Jung Chung-gu | Cast | Actor | Song Yu-Chan’s dad | 1 |
 Seo Dong-gab | Cast | Actor | Jung Jin-seop | 1 |
 Hwang Jung-yoon | Cast | Actress | Pet store employee | 1 |
 Chang Ryul | Cast | Actor | Hwang Yeo-hwan | 12 |
 Choi Ye Eun | Cast | Actress | Resident | 1 |
 Kim Jong-tae | Cast | Actor | Im Hyeok-soo | 12 |
 Kong Seong-ha | Cast | Actress | Cha Min-seo | 12 |
 Lim Jae-hyeok | Cast | Actor | Kong Cheol-woo | 12 |
 Lee Kyung-oh | Cast | Actor | CEO | 1 |
 Jo Seung-yeon | Cast | Actress | Department Store Staff | 1 |
 Lee E-dam | Cast | Actress | Min Deul-re | 12 |
| Person | Type | Job | Role(s) | Episodes |
