| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Kim Eun-sook | Crew | Writing | Screenplay, Writer, Creator | 20 |
 Kwon Hyuk-chan | Crew | Directing | Director | 20 |
Oh Se Kang | Crew | Production | Producer | 20 |
 Shin Woo-chul | Crew | Directing | Director | 20 |
Yoon Ha-lim | Crew | Production | Executive Producer | 20 |
 Ha Ji-won | Cast | Actress | Gil Raim | 20 |
 Kim Mi-kyeong | Cast | Actress | Ahjumma from the guest house | 2 |
 Song Yun-ah | Cast | Actress | cameo | 20 |
 Hyun Bin | Cast | Actor | Kim Joowon | 20 |
 Kim Sa-rang | Cast | Actress | Yoon Seul | 20 |
 Son Ye-jin | Cast | Actress | Son Yejin | 20 |
 Jo Jae-yun | Cast | Actor | Photographer | 1 |
 Yoon Sang-hyun | Cast | Actor | Oska / Choi Woo Young | 20 |
 Hwang Seok-jeong | Cast | Actress | Sauna receptionist | 1 |
 Yoo In-na | Cast | Actress | Im Ayoung | 20 |
 Jeon Jin-gi | Cast | Actor | Director | 1 |
 Lee Jun-hyuk | Cast | Actor | Himself | 1 |
 Park Joon-geum | Cast | Actress | President Moon Boonhong | 20 |
 Lee Philip | Cast | Actor | Director Im Jongsoo | 20 |
 Lee Seol-gu | Cast | Actor | 1 | |
 Lee Hye-in | Cast | Actress | Oska's fan | 1 |
 Yum Dong-hun | Cast | Actor | Pervert in department store | 2 |
 Noh Hong-chul | Cast | Actor | Stunt auditionee | 1 |
 Han Ye-won | Cast | Actress | Cherry | 1 |
 Lee Jong-suk | Cast | Actor | Han Taeseon | 20 |
 Kim Ye-won | Cast | Actress | Kim Shin Ah | 1 |
 Kim Sung-oh | Cast | Actor | Secretary Kim Seongo | 20 |
 Yoo Seo-jin | Cast | Actress | Doctor Park Jihyeon | 20 |
 Baek Ji-young | Cast | Actress | cameo | 20 |
| Person | Type | Job | Role(s) | Episodes |
