| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Shin Chang-seok | Crew | Directing | Director | 52 |
 Kim Sa-gyeong | Crew | Writing | Writer | 52 |
 Cho Eun-sook | Cast | Actress | Steel Smile owner | 2 |
 Lee Jong-won | Cast | Actor | Park Soo-Cheol | 52 |
 Hong Seok-cheon | Cast | Actor | Real estate president | 2 |
 Kim Ga-yeon | Cast | Actress | Ms. Kim | 1 |
 Cha Hwa-yeon | Cast | Actress | Wang Dae Ran | 52 |
 Lee Hwi-hyang | Cast | Actress | Lee Ki-Ja | 52 |
 Lee Il-hwa | Cast | Actress | Anna Kim | 52 |
 Im Ye-jin | Cast | Actress | Jang Mi-Sook | 52 |
 Kim Yeong-ok | Cast | Actress | Jin Dal Rae | 52 |
 Kang Eun-tak | Cast | Actor | Cha Gun | 52 |
 Kim Young-jun | Cast | Actor | Oh Kyeong Seok | 5 |
 Moon Hee-kyung | Cast | Actress | Seung Ho's mother | 1 |
 Lee Hye-in | Cast | Actress | Eun Joo | 1 |
 Oh Hyun-kyung | Cast | Actress | Cha Yeon-Sil | 52 |
 Lee Tae-ri | Cast | Actor | Ma Hyun Bin | 7 |
 Yoon Jin-yi | Cast | Actress | Lee Se Ryeon | 52 |
 Park Ha-na | Cast | Actress | Jo Sa-Ra | 52 |
 An Woo-yeon | Cast | Actor | Park Dae-beom | 52 |
 Wang Bit-na | Cast | Actress | Jang Gook Hee | 5 |
 Ji Hyun-woo | Cast | Actor | Lee Young Guk | 52 |
 Oh Young-shil | Cast | Actress | Mrs. Jeong | 4 |
 Im Jae-geun | Cast | Actor | Kang Seong Sik [Yeong Gook's friend] | 1 |
 Oh Seung-ah | Cast | Actress | Ahn Ji Min | 2 |
Yang Byeong-yeol | Cast | Actor | Bong Joon-O | 52 |
 Jeon Won-joo | Cast | Actress | Grandmother | 1 |
 Choi Myeong-been | Cast | Actress | Lee Jae-Ni | 52 |
 Park Kwang-jae | Cast | Actor | Man who came to see the house | 1 |
 Park Young-soo | Cast | Actor | Sa Ra's blind date | 1 |
 Lee Se-hee | Cast | Actress | Park Dan Dan | 52 |
 Baek Jae-jin | Cast | Actor | Detective | 1 |
 Kim Yi-kyeong | Cast | Actress | Kang Mi-Rim | 52 |
 Seo Woo-jin | Cast | Actor | Lee Se-Jong | 52 |
 Eru | Cast | Actor | Young Guk's lawyer | 52 |
 Kim Na-hee | Cast | Actress | Jessica Lee | 1 |
 Park Hyun Jung | Cast | Actress | Orphanage nun | 2 |
 Yoon Ji-sook | Cast | Actress | Yeojudaek | 52 |
 Lee Myung-ho | Cast | Actor | Cinematographer | 2 |
 Kim Hye-won | Cast | Actress | Hye Jeong [Kyeong Seok's friend] | 4 |
 Kim Yun-seul | Cast | Actress | Movie girl | 1 |
 Lim Hye-Young | Cast | Actress | Young Guk's late wife | 3 |
 Yang Chi-Seung | Cast | Actor | Man who came to see the house | 1 |
 Choi Wan-Jung | Cast | Actress | BBQ restaurant owner | 1 |
 Yang Jae-Won | Cast | Actor | Officetel security | 3 |
 Lee Min-Ji | Cast | Actress | Dan Dan's school senior | 1 |
| Person | Type | Job | Role(s) | Episodes |
