Cast & crew
Oh! Happy Day (2003)
Directed by Yun Hak-ryeol Written by Oh Eun-Hee, Yun Hak-ryeol
Cast
| Jang Na-ra | Kong / Lumpy |
| Park Jung-chul | Hyun-woo |
| Kim Hae-sook | Yang |
| Jung Da-hye | Kong / Lumpy |
| Jang Hang-seon | Jang |
| Park Ji-yeon | Pappy's Staff |
| Kwon Hae-sung | Black Student |
| Lee Mi-mi | Ra |
| Kwon Seong-deok | Shin Yoo-Shin |
| Kim Mi-hwa | |
| Kim Soo-mi |
Crew
| Oh Eun-Hee | Writer |
| Yun Hak-ryeol | Director |
| Yun Hak-ryeol | Writer |