| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Kim Kyu-tae | Crew | Directing | Director | 20 |
 Noh Hee-kyung | Crew | Writing | Writer, Creator | 20 |
Jang Jung-do | Crew | Production | Executive Producer | 20 |
 Lee Byung-hun | Cast | Actor | Lee Dong-seok | 20 |
 Yang Hee-kyung | Cast | Actress | Ms. Jang | 1 |
 Kim Hye-ja | Cast | Actress | Kang Ok-dong | 20 |
 Cha Seung-won | Cast | Actor | Choi Han-su | 20 |
 Kim Young-min | Cast | Actor | Mi-ran's ex-husband | 1 |
 Goh Doo-shim | Cast | Actress | Hyeon Chun-hui | 20 |
 Dong Hyo-hee | Cast | Actress | Jong-u's wife | 1 |
 Uhm Jung-hwa | Cast | Actress | Ko Mi-ran | 20 |
 Han Ji-min | Cast | Actress | Lee Yeong-ok | 20 |
 Shin Min-a | Cast | Actress | Min Seon-a | 20 |
 Park Ji-hwan | Cast | Actor | Jeong In-gwon | 20 |
 Min Ji-a | Cast | Actress | Oh Hae-seon | 20 |
 Kim Woo-bin | Cast | Actor | Park Jeong-jun | 20 |
 Cho Hye-jeong | Cast | Actress | Yang Dal-i | 20 |
 Lee Jung-eun | Cast | Actress | Jung Eun-hui | 20 |
 Choi Byung-mo | Cast | Actor | Kim Jong-u | 2 |
 Kim Kwang-kyu | Cast | Actor | Kim Myeong-bo | 20 |
 Choi Moon-kyoung | Cast | Actress | OB-GYN | 1 |
 Im Jae-geun | Cast | Actor | Han-suk's husband | 1 |
 Baek Seung-do | Cast | Actor | Park Gi-jun | 20 |
 Park Seong-yeon | Cast | Actress | Family court investigator | 1 |
 Kim Ah-song | Cast | Actress | Min Seon-a (young) | 2 |
 Shim Dal-gi | Cast | Actress | Jung Eun-hui (young) | 20 |
 Hyun Bong-sik | Cast | Actor | SS Bank customer | 1 |
 Kim A-ram | Cast | Actress | Tae-hun's sister-in-law | 1 |
 Min Dae-sik | Cast | Actor | Doctor | 1 |
 Jeong Eun-hye | Cast | Actress | Lee Yeong-hui | 20 |
 Seol Chang-hee | Cast | Actor | Abang Sundae diner | 1 |
 Bae Hyeon-seong | Cast | Actor | Jung Hyeon | 20 |
 Kang Hak-soo | Cast | Actor | Eun-hui's father | 1 |
 Min Kyeong-ok | Cast | Actress | Vegetable vendor | 1 |
 Jo Ah-ra | Cast | Actress | In-jeong | 20 |
 Park Soon-cheon | Cast | Actress | Convenience store owner | 3 |
 Choi Young-jun | Cast | Actor | Bang Ho-sik | 20 |
 Yoon Byung-hee | Cast | Actor | Captain Bae | 20 |
 Jung Sung-il | Cast | Actor | Kim Tae-hun | 20 |
 Oh Jeong-won | Cast | Actress | Massage client | 1 |
 Gu Bon-jin | Cast | Actor | Pureung High School teacher | 1 |
 Min Woo-gi | Cast | Actor | Mr. Son | 1 |
 Song Hoon | Cast | Actor | Sushi restaurant man | 1 |
 Kim Seong-yong | Cast | Actor | Dong-seok's friend | 1 |
 Bae Seong-il | Cast | Actor | Dong-seok's friend | 1 |
 Lee Ja-ryeong | Cast | Actress | Seoul market vendor | 1 |
 Hong Jeong-min | Cast | Actress | Lee Yeong-ok (young) | 1 |
 Han Jeong-hyeon | Cast | Actress | Choi Han-suk | 20 |
 Nam Kyu-hee | Cast | Actress | Yang Seong-seon | 20 |
 Park Ji-won | Cast | Actress | Woman answering door | 1 |
 Kim Jeong-hwan | Cast | Actor | Son Man-su | 20 |
 Roh Yoon-seo | Cast | Actress | Bang Yeong-ju | 20 |
 Kim Jae-won | Cast | Actor | Choi Han-su (young) | 20 |
 Kim Jo-yeon | Cast | Actor | Tae-hun's brother | 1 |
 Lee Taek-geun | Cast | Actor | Mi-ran's friend | 2 |
 Kim Ji-seong | Cast | Actress | Kang Ok-dong (young) | 3 |
 Park Ji-a | Cast | Actress | Park Hye-ja | 20 |
 Jeon Jun-woo | Cast | Actor | Yeong-ok's uncle | 1 |
 Cha Sang-mi | Cast | Actress | Abang Sundae employee | 5 |
 Choi Seung-kyung | Cast | Actor | Kim Jong-cheol | 1 |
 Gu Yun-hoe | Cast | Actor | Doctor | 1 |
 Gi So-you | Cast | Actress | Son Eun-gi | 20 |
 Seo Myung-chan | Cast | Actor | Seon-a's uncle | 1 |
 Ryu Hae-jun | Cast | Actor | Lee Dong-seok (young) | 3 |
 Lee Byeong-cheol | Cast | Actor | Seafood vendor | 1 |
 Lee Jae-woo | Cast | Actor | Car accident driver | 1 |
 Cheon Dong-been | Cast | Actor | Lee Chan-hwi | 20 |
 Kim Ra-on | Cast | Actor | Chan Sung | 1 |
 Lee Chae-yoon | Cast | Actress | Hae-seon's mother | 1 |
 Guk Joong-woong | Cast | Actor | Dong-seok's friend | 1 |
 Jeong Eun-ran | Cast | Actress | Restaurant owner | 1 |
 Oh Hae-joo | Cast | Actress | Nurse | 1 |
 Shin Hye-kyung | Cast | Actress | Jeong-jun's mother | 1 |
 Seong No-jin | Cast | Actor | Construction worker | 1 |
| Person | Type | Job | Role(s) | Episodes |
