| Name | Type | Role | |
|---|---|---|---|
| Kim Jung-su | Guest Star | Jungsu | |
| Oh Seung-min | Guest Star | O.de | |
| Lang Lang | Guest Star | ||
| J.Y. Park | Guest Star | J.Y. Park | |
| Lee Joo-yeon | Guest Star | Jooyeon | |
| Lee Su-hyun | Guest Star | ||
| Han Hyung-jun | Guest Star | Jun Han | |
| Kim Ho-kyung | Guest Star | Tei | |
| Kwak Ji-seok | Guest Star | Gaon | |
| Goo Gun-il | Guest Star | Gunil |