| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Park Joon-hwa | Crew | Directing | Director, Creator | 16 |
 Jung Eun Young | Crew | Writing | Screenplay | 16 |
 Song Yu-vin | Crew | Sound | Vocals | 16 |
 Jeong Se-woon | Crew | Sound | Vocals | 16 |
 Jung Kyung Yoon | Crew | Writing | Comic Book | 16 |
 KIHYUN | Crew | Sound | Vocals | 16 |
 Yoo Jong-sun | Crew | Directing | Director | 16 |
 Seola | Crew | Sound | Vocals | 16 |
Choi Bo-rim | Crew | Writing | Writer | 16 |
 Paek Sun-woo | Crew | Writing | Writer | 16 |
 Rothy | Crew | Sound | Vocals | 16 |
 Jo Jin-ho | Crew | Sound | Vocals | 16 |
Jang Jung-do | Crew | Production | Executive Producer | 16 |
Choi Ji-young | Crew | Directing | Co-Director | 16 |
 Seogi | Crew | Sound | Vocals | 16 |
 Jo Deok-hyeon | Cast | Actor | Kim Young Man [Mi So's father] | 4 |
 Kim Byeong-ok | Cast | Actor | CEO Lee | 16 |
 Kim Ga-yeon | Cast | Actress | Staff who talked behind Kim Mi So's back | 1 |
 Kim Hye-ok | Cast | Actress | Madame Choi | 16 |
 Jung Yu-mi | Cast | Actress | Young Joon's friend | 1 |
 Hwang Bo-ra | Cast | Actress | Bong Se-ra | 16 |
 Lee Byung-joon | Cast | Actor | Jang Jeong Do [Fashion Designer] | 1 |
 Lee Min-ki | Cast | Actor | Mi-so's father | 1 |
 Lee Soo-kyung | Cast | Actress | Mrs. Choi [Young Joon's Mother - Young] | 2 |
 Jeong Soo-young | Cast | Actress | Agency staff | 1 |
 Park Byung-eun | Cast | Actor | Park Byung-Eun | 1 |
 Seo Hyo-rim | Cast | Actress | Yoo-sik's Ex-wife | 16 |
 Hwang Chan-seong | Cast | Actor | Go Gwi-nam | 16 |
 Park Min-young | Cast | Actress | Kim Mi-so | 16 |
 Ko Se-won | Cast | Actor | Chairman Lee [Yeong Joon's father - Young] | 3 |
 Jung So-min | Cast | Actress | Mi So's mother | 1 |
 Park Seo-jun | Cast | Actor | Lee Young-joon | 16 |
 Kang Ki-young | Cast | Actor | Park Yoo-sik | 16 |
 Kil Hae-yeon | Cast | Actress | Woman at the reserved parking space | 1 |
 Lee Yoo-jun | Cast | Actor | Jung Chi-in | 16 |
 Lee Tae-hwan | Cast | Actor | Lee Sung-yeon | 16 |
 Kim Ye-won | Cast | Actress | Seol Ma-eum | 16 |
 Kang Hong-suk | Cast | Actor | Yang Cheol | 16 |
 Lee Jung-min | Cast | Actress | Lee Young-ok | 16 |
 Pyo Ye-jin | Cast | Actress | Kim Ji-a | 16 |
 Choi Hyeon-woo | Cast | Actor | Himself | 1 |
 Bae Gang-Yoo | Cast | Actor | Young Lee Sung-yeon | 16 |
 Kim Jung-woon | Cast | Actor | Park Joon-hwan | 16 |
 Lee Do-yeon | Cast | Actress | Journalist | 1 |
 Hong Ji-yoon | Cast | Actress | Oh Ji Ran [Famous model & onetime girlfriend of Young Joon] | 3 |
 Son Sung-yoon | Cast | Actress | Kidnapper | 1 |
 Bae Hyeon-seong | Cast | Actor | Bae Yun Sung [Intern] | 4 |
 Lee Se-young | Cast | Actress | Staff who talked behind Kim Mi So's back | 1 |
 Moon Woo-jin | Cast | Actor | Lee Young-joon / Lee Sung-hyun | 16 |
 Choi Hee | Cast | Actress | Host of the book concert | 1 |
 Michal Spasov Ashminov | Cast | Actor | Himself | 1 |
 Kim Ji-Yu | Cast | Actress | Young Kim Mi-so | 16 |
 Baek Eun-hae | Cast | Actress | Kim Pil-nam | 16 |
 Park Tae-yun | Cast | Actor | Claw machine schoolboy | 1 |
| Person | Type | Job | Role(s) | Episodes |
