| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Jeong Jeong-hwa | Crew | Directing | Director | 14 |
Jang Ah-mi | Crew | Writing | Writer | 14 |
 Hong Seok-yeon | Cast | Actor | Dr. Jang | 1 |
 Kim Soo-ro | Cast | Actor | Choi Sung-il / Choi Deok-chil | 14 |
 Hong Eun-hee | Cast | Actress | Oh Eun-ran | 14 |
 Ju Jin-mo | Cast | Actor | Kim Deok-bae | 14 |
 Oh Mi-hee | Cast | Actress | Writer Wang | 2 |
 Yeon Min-ji | Cast | Actress | Choi Mi-ae | 14 |
 Jung Young-ki | Cast | Actor | Jeon Byeon-jin | 1 |
 Im Soo-hyang | Cast | Actress | Oh Woo-ri | 14 |
 Sung Hoon | Cast | Actor | Raphael / Kim Bok-rae | 14 |
 Shin Dong-wook | Cast | Actor | Lee Kang-jae | 14 |
 Kim Sa-Kwon | Cast | Actor | Park Doo-bal | 14 |
 Park Jin-young | Cast | Actor | Doctor | 1 |
 Lee Do-yeon | Cast | Actress | Yu Ye-ri | 14 |
 Hong Ji-yoon | Cast | Actress | Lee Ma-ri / Lee Mal-ja | 14 |
 Han So-Hyun | Cast | Actress | Woo Ri's friend | 1 |
 Kim Sun-ung | Cast | Noh Man-cheol | 14 | |
 Kim Ik-tae | Cast | Actor | Priest | 4 |
 Kim Dong-hyun | Cast | Actor | Squad Chief | 14 |
 Kim Ho | Cast | Actor | Bbikku's past victim | 1 |
 Jang Yong-bok | Cast | Actor | Jung Chun-sam | 14 |
 Yoon Sung-won | Cast | Actor | Doctor | 1 |
 Han Jae-yi | Cast | Actress | Park Na-hee | 14 |
 Park Sun-young | Cast | Actress | Chief Secretary Lim | 14 |
 Park Young-bok | Cast | Actor | Romance Sauna owner | 1 |
 Joo Boo-jin | Cast | Actress | Min Ji's grandmother | 1 |
 Choi Min-geum | Cast | Actress | Veronica | 1 |
 Song Hoon | Cast | Actor | Photographer | 1 |
 Yoon Bok-sung | Cast | Actor | Dr. Song | 1 |
 Kim Young-Joo | Cast | Actor | Bus passenger | 1 |
 Jang Jae-kwon | Cast | Actor | Trot show judge | 1 |
 Jung Hae-na | Cast | Actress | Min Chae | 1 |
 Kim Kyoung-wook | Cast | Actor | BJ Bbikku | 1 |
 Lee Ha-eum | Cast | Actress | Pregnant diner | 1 |
 Park Seoung-tae | Cast | Actress | Park Myung-hee | 2 |
 Kim Ji-an | Cast | Actress | Oh Woo-ri [Teen] | 4 |
 Ahn Shin-woo | Cast | Actor | Jung Hyung-shik | 14 |
 Bae Eun-woo | Cast | Actress | Ye Rin | 1 |
 Jeong Dong-geun | Cast | Actor | Nam Hyung-wook | 3 |
 Shin Dong-hoon | Cast | Actor | Doctor | 1 |
 Uhm Tae-ok | Cast | Actor | Police officer | 1 |
 Yoo Ah-reum | Cast | Actress | Jeon Joo-Young | 1 |
 Bret Allan Lindquist | Cast | Actor | Man in dream | 1 |
 Park So-eul | Cast | Actress | Soo Hyun | 1 |
 Kim Su-ol | Cast | Actress | DMF Security room staff | 1 |
 Park Joo-young | Cast | Actress | Yoga instructor | 1 |
 Han Yu-hee | Cast | Actress | Nun | 1 |
 Hyun Seo-ha | Cast | Actress | Sauna customer | 1 |
 Kim Jung-hwan | Cast | Actor | Mystery man | 1 |
 Choi Young | Cast | Actor | Bus driver | 1 |
 Lee Chae-yoon | Cast | Actress | Lee Soon-hee | 3 |
| Person | Type | Job | Role(s) | Episodes |
