 | Jung Woo-sung als Professor Hak-kyu |
 | Esom als Deok-ee / Se-jung |
 | Park So-young als Chung-ee |
 | Kim Hee-won als Mr. Choi |
 | Park Seo-yeon als Young Chung-ee |
 | Park So-dam als Chung-ee's Friend |
 | Yoon Se-a als Chung-ee's Mother |
 | Han Joo-young als Ji-eun |
 | Son Suk-ku als Deong-chi |
 | Lee Seo-yi als Student |
| Yim Pil-sung | Director |
| Jang Yoon-mi | Writer |
| Yoon Seo-young | Line Producer |
| Chae Kyung-hwa | Costume Design |
| Park Ji-sung | Co-Producer |
| Han Myung-hwan | Sound Mixer |
| Lee Sung-jin | Sound Supervisor |
| Yim Pil-sung | Adaptation |
| Park Se-seung | Camera Operator |
| Lee Eun-ju | Original Music Composer |
| Mowg | Original Music Composer |
| Kim Sang-bum | Editor |
| Kim Jae-beom | Editor |
| Park Kyoung-soo | Special Effects Supervisor |
| Jeong Ji-young | Sound Effects Designer |
| Yang Jin-mo | Assistant Editor |
| Jang Min-woo | Art Direction |
| Park Beom-su | Post Production Supervisor |
| Lee Seong-je | Director of Photography |
| Lee Byeong-hoon | Lighting Director |
| Jung Do-ahn | Special Effects Supervisor |
| Seo Jong-hae | Producer |
| Song Gyeong-seop | Still Photographer |
| Kwon Young-il | "B" Camera Operator |
