| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Park Jung-hun | Crew | Camera | Director of Photography | 16 |
 Seungmin | Crew | Sound | Songs | 16 |
 Yu Je-won | Crew | Directing | Director | 16 |
 Shin Ha-eun | Crew | Writing | Screenplay, Writer | 16 |
 Lim Ha-young | Crew | Sound | Sound | 16 |
 Lee Ho-jae | Cast | Actor | Doo-shik's grandfather | 2 |
 Lee Yong-i | Cast | Actress | Lee Mat-yi | 16 |
 Kim Hak-seon | Cast | Actor | Kim Ki-hoon | 2 |
 Kim Jin | Cast | Actress | Kim Mi-young | 1 |
 Park Mi-hyun | Cast | Actress | Cho-hui's mother | 1 |
 Shin Min-a | Cast | Actress | Yoon Hye-jin | 16 |
 Kim Yeong-ok | Cast | Actress | Kim Gam-ri | 16 |
 In Gyo-jin | Cast | Actor | Chang Yeong-guk | 16 |
 Jo Han-chul | Cast | Actor | Oh Chae-jun | 16 |
 Kim Jae-man | Cast | Actor | Kim Min-sub | 1 |
 Jin Yong-uk | Cast | Actor | Fisherman | 3 |
 Kim Hyun | Cast | Actress | Kim Ki-hoon's wife | 1 |
 Oh Eui-sik | Cast | Actor | Park Jung-woo | 3 |
 Lee Jung-eun | Cast | Actress | Kim Yeon-ok | 1 |
 Kim Seon-ho | Cast | Actor | Hong Du-sik | 16 |
 Kim Ji-hyun | Cast | Actress | Seon-a | 3 |
 Seo Sang-won | Cast | Actor | Yoon Tae-hwa | 16 |
 Park Ye-yeong | Cast | Actress | Wang Ji-won | 16 |
 Kim Min-seo | Cast | Actress | Oh Ju-ri | 16 |
 Kim Jin-yeop | Cast | Actor | Gang-wook | 3 |
 Shin Shin-ae | Cast | Actress | Park Sook-ja | 16 |
 Im Seong-mi | Cast | Actress | Hwang Ji-won | 1 |
 Lee Sang-yi | Cast | Actor | Ji Sung-hyun | 16 |
 Bae Hae-seon | Cast | Actress | Lee Min-young | 1 |
 Gong Min-jeung | Cast | Actress | Pyo Mi-seon | 16 |
 Song Min-jae | Cast | Actor | Hong Doo-shik (young) | 2 |
 Lee Bong-ryeon | Cast | Actress | Yeo Hwa-jeong | 16 |
 Bae Min-jun | Cast | Actor | Choi Geum-cheol (teenager) | 1 |
 Kim Dae-gon | Cast | Actor | Rotisserie chicken vendor | 1 |
 Lee Si-hoon | Cast | Actor | Patient | 1 |
 Lee Suk-hyeong | Cast | Actor | Kang Do-ha | 16 |
 Cha Chung-hwa | Cast | Actress | Jo Nam-sook | 16 |
 Lee Hyeon-seo | Cast | Actress | Pharmacist | 1 |
 Woo Mi-hwa | Cast | Actress | Lee Myung-shin | 16 |
 Shim Hye-yeon | Cast | Actress | Yoon Hye-jin (young) | 4 |
 Bae Bo-ram | Cast | Actress | Ko Yoon-hee | 1 |
 Kim Do-young | Cast | Actor | Psychiatrist | 2 |
 Shim Jin-hwa | Cast | Actress | Diner | 1 |
 Kim Ju-yeon | Cast | Actress | Ham Yun-kyung | 3 |
 Kim Won-suk | Cast | Actor | ovN employee | 1 |
 Lee Jin-hee | Cast | Actress | Hye-jin's mother | 3 |
 Kang Hyung-suk | Cast | Actor | Choi Eun-cheol | 16 |
 Park Hui-eun | Cast | Actress | Dental clinic patient | 1 |
 Park Ok-chul | Cast | Actress | Waitress | 1 |
 Hong Ji-hee | Cast | Actress | Yu Cho-hui | 16 |
 Lee Do-yeop | Cast | Actor | Gam-ri's son | 1 |
 Kim Seong-beom | Cast | Actor | Ban Yong-hoon | 16 |
 Yoon Dan-bi | Cast | Actress | Dental tech | 1 |
 Min Jung-sup | Cast | Actor | Officer Lee | 2 |
 Ahn Su-bin | Cast | Actress | Jewelry saleswoman | 1 |
 Moon Seong-hyun | Cast | Actor | Hong Doo-shik (teenager) | 2 |
 Oh Ye-ju | Cast | Actress | Yoon Hye-jin (teenager) | 1 |
 Lee Ki-seop | Cast | Actor | Scammer | 1 |
 Jo Ji-hyeon | Cast | Actress | Waitress | 1 |
 Kim Seong-in | Cast | Actor | "The Seashore Grasshopper" crew member | 5 |
 Moon Ah-ram | Cast | Actress | Hye-jin's friend | 1 |
| Person | Type | Job | Role(s) | Episodes |
