| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Lee Woo-jung | Crew | Writing | Writer | 20 |
 Lee Myung-han | Crew | Production | Executive Producer | 20 |
 Kim Joo-hyuk | Cast | Actor | Deok-sun's future husband | 15 |
 Lee Mi-yeon | Cast | Actress | Sung Deok-sun (older) | 16 |
 Kim Soo-ro | Cast | Actor | Snack shop owner | 1 |
 Jung Won-joong | Cast | Actor | Dong-il's older brother | 1 |
 Shin Young-jin | Cast | Actress | Song-hee's mother | 1 |
 Sung Dong-il | Cast | Actor | Sung Dong-il | 20 |
 Lee Il-hwa | Cast | Actress | Lee Il-hwa | 20 |
 Ahn Jae-hong | Cast | Actor | Kim Jung-bong | 20 |
 Lee Jong-hyuk | Cast | Actor | Sung Sun-woo (older) (voice) | 1 |
 Ra Mi-ran | Cast | Actress | Ra Mi-ran | 20 |
 Kim Yeong-ok | Cast | Actress | Deok-sun's grandmother | 1 |
 Go Ara | Cast | Actress | Sung Na-jung | 2 |
 Ko Chang-seok | Cast | Actor | Mi-ok's father | 2 |
 Woo Hyeon | Cast | Actor | Sung No-eul (older) | 6 |
 Son Eun-seo | Cast | Actress | Mr. Yoo's girlfriend | 3 |
 Park Jeong-min | Cast | Actor | Bo-ra's boyfriend | 2 |
 Lee Min-ji | Cast | Actress | Jang Mi-ok | 20 |
 Choi Moo-seong | Cast | Actor | Choi Moo-seong | 20 |
 Kim Tae-hun | Cast | Actor | Cardiac surgeon | 1 |
 Park Bo-gum | Cast | Actor | Choi Taek | 20 |
 Kim Chang-hwan | Cast | Actor | Reporter | 1 |
 Kim Sung-kyun | Cast | Actor | Kim Sung-kyun | 20 |
 Go Kyung-pyo | Cast | Actor | Sung Sun-woo | 20 |
 Kim Sun-young | Cast | Actress | Kim Sun-young | 20 |
 Song Young-gyu | Cast | Actor | Lee Tae-yong | 2 |
 Lee Dong-hwi | Cast | Actor | Ryu Dong-ryong | 20 |
 Kwon Eun-soo | Cast | Actress | Song-hee | 2 |
 Jung Hae-in | Cast | Actor | Ho-young | 1 |
 Lee Hye-ri | Cast | Actress | Sung Deok-sun | 20 |
 Yoo Jae-myung | Cast | Actor | Ryu Jae-myung | 20 |
 Ryu Jun-yeol | Cast | Actor | Kim Jung-hwan | 20 |
 Lee Soo-kyung | Cast | Actress | No-eul's girlfriend | 1 |
 Lee Jae-kyoon | Cast | Actor | University student | 1 |
 Jung Woo | Cast | Actor | Kim Jae-jun | 1 |
 Jeon Mi-seon | Cast | Actress | Sung Bo-ra (older) | 8 |
 Oh Hee-jun | Cast | Actor | Soccer teammate | 1 |
 Ryu Hye-young | Cast | Actress | Sung Bo-ra | 20 |
 Choi Seong-won | Cast | Actor | Sung No-eul | 20 |
 Park Ji-yoon | Cast | Actress | TV interviewer | 1 |
 Kim Seol | Cast | Actress | Sung Jin-ju | 20 |
 Jung Yoo-min | Cast | Actress | Bo-ra's friend | 1 |
 Lee Se-young | Cast | Actress | Wang Ja-hyun | 20 |
 Shin Bi | Cast | Actress | Sung Jin-ju (older) | 3 |
 Cho Chang-geun | Cast | Actor | Detective | 1 |
 Lee Mun-jeong | Cast | Actress | No-eul's girlfriend's sister | 1 |
 Jang Hae-song | Cast | Actor | Wang Xi | 1 |
| Person | Type | Job | Role(s) | Episodes |
