| Darsteller | Rolle |
|---|---|
| Won Joo | Park Jin Gyeom (16) |
| Hee-seon Kim | Yoon Tae Yi / Park Sun Young (10) Yoon Tae Yi (6) |
| Da-In Lee | Kim Do Yeon (16) |
| Choi Wonyoung | Seok Oh Won (15) |
| Si-Yang Kwak | Yoo Min Hyuk (14) |
| Jae-yoon Lee | Kim Dong Ho (14) |
| Jihyuk Song | Hong Jung Wook (14) |
| Jeong Wook | Ha Yong Seok (14) |
| Kim Sang-ho | Go Hyun Seok (13) |
| Seung-eon Hwang | Oh Shi Young (13) |
| Kyeong-nam Kim | Ki Cheol Am (13) |
| Yang Ji-il | Choi Seung Pyo (11) |
| Yeonwoo | Yoon Tae Yeon (10) |
| Hae-Sun Bae | Kim In Sook (9) |
| Oh Yeong-Sil | Tae Yi's mother (9) |
| Jung-woo Choi | Tae Yi's father (8) |
| Min Jun Ho | Kim Jung Bae (7) |
| Sun Ah | Jung Hye Su (5) |
| In-soo Park | Lee Se Hoon (5) |
| Dong-gyun Kim | Kim Do Yeon's father (4) |
| Hong-il Choi | Yoon Jong Soo (4) |
| Yeon-ah Oh | Hong Eun Soo's mother (4) |
| Seo Yi-Soo | Hong Eun Soo (4) |
| Kim Ji-Yu | Tae Yi (4) |
| Lee Jin-Ah | Kim Do Yeon's mother (4) |
| Ok-chool Park | Meat shop lady (3) |
| Joo-man Yoon | Joo Hae Min (3) |
| Seung-hyeong Lee | Hong Eun Soo's father (3) |
| Hyun-Sung Jang | Jang Dong Shik (2) |
| Moon Ju-Won | Park Jin Gyeom (2) |
| Gwang-jae Seo | Medical Examiner (2) |
| Lee Su-Woong | Jung Ki Hoon (2) |
| Soo-bin Ahn | Kindergarten Teacher |
| Carson Allen | English teacher |
| Na Moo Choi | Apartment Witness |
| Dong-Ryeok Sin | Doctor |
| Moon Woo-Jin | Park Jin Gyeom |
| Lee Jung-Hyun | Yang Hong Seob |
| Jin-yeong Park | Professor |
| Hee-jin Choi | Doctor |