| Name | Character | Episodes |
|---|---|---|
| Kim Ji-hoon | Lee Jae-hyeong | 16 |
| Gu Bon-jin | Professor Jung | 1 |
| Jung Yi-rang | Namsan date woman | 1 |
| Oh Jung-se | Director Kim | 1 |
| Name | Character | Episodes |
|---|---|---|
| Kim Ji-hoon | Lee Jae-hyeong | 16 |
| Gu Bon-jin | Professor Jung | 1 |
| Jung Yi-rang | Namsan date woman | 1 |
| Oh Jung-se | Director Kim | 1 |