| Name | Type | Role | |
|---|---|---|---|
| Han Hyung-jun | Guest Star | Jun Han (Xdinary Heroes) | |
| Lee Chae-ryeong | Guest Star | Chaeryeong (ITZY) | |
| Yoo Jeong-yeon | Guest Star | Jeongyeon (TWICE) | |
| Tomiyasu Yū | Guest Star | Yu (NEXZ) | |
| Seol Yoon-a | Guest Star | Sullyoon (NMIXX) | |
| J.Y. Park | Guest Star | J.Y. Park | |
| ITZY | Guest Star | ITZY | |
| Hyunjin | Guest Star | Hyunjin (Stray Kids) | |
| Donghwa | Guest Star | Donghwa (KickFlip) | |
| Yamaguchi Mako | Guest Star | Mako (NiziU) | |
| Young K | Guest Star | Young K (DAY6) | |
| Lee Joo-yeon | Guest Star | Jooyeon (Xdinary Heroes) | |
| Shin Yu-na | Guest Star | Yuna (ITZY) | |
| Uemura Tomoya | Guest Star | Tomoya (NEXZ) | |
| Park Ji-hyo | Guest Star | Jihyo (TWICE) | |
| Nichkhun | Guest Star | Nichkhun (2PM) | |
| Kim Ji-woo | Guest Star | Jiwoo (NMIXX) | |
| DAY6 | Guest Star | DAY6 | |
| I.N | Guest Star | I.N (Stray Kids) | |
| Minje | Guest Star | Minje (KickFlip) | |
| Nakabayashi Rima | Guest Star | Rima (NiziU) | |
| Kim Won-pil | Guest Star | Wonpil (DAY6) | |
| Xdinary Heroes | Guest Star | Xdinary Heroes | |
| 2PM | Guest Star | 2PM | |
| Inoue Haru | Guest Star | Haru (NEXZ) | |
| Kim Da-hyun | Guest Star | Dahyun (TWICE) | |
| Jun. K | Guest Star | Jun. K (2PM) | |
| NMIXX | Guest Star | NMIXX | |
| Goo Gun-il | Guest Star | Gun-il (Xdinary Heroes) | |
| Keiju | Guest Star | Keiju (KickFlip) | |
| Choi Ji-su | Guest Star | Lia (ITZY) | |
| Yoon Do-woon | Guest Star | Dowoon (DAY6) | |
| Suzuno Miihi | Guest Star | Miihi (NiziU) | |
| Lily Jin Morrow | Guest Star | Lily (NMIXX) | |
| Stray Kids | Guest Star | Stray Kids | |
| So Ken | Guest Star | So Geon (NEXZ) | |
| Bang Chan | Guest Star | Bang Chan (Stray Kids) | |
| Jang Woo-young | Guest Star | Wooyoung (2PM) | |
| KickFlip | Guest Star | KickFlip | |
| Oh Seung-min | Guest Star | O.de (Xdinary Heroes) | |
| Shin Ryu-jin | Guest Star | Ryujin (ITZY) | |
| Im Na-yeon | Guest Star | Nayeon (TWICE) | |
| Nana Mizuki | Guest Star | Nina (NiziU) | |
| Oh Hae-won | Guest Star | Haewon (NMIXX) | |
| TWICE | Guest Star | TWICE | |
| Changbin | Guest Star | Changbin (Stray Kids) | |
| Kyehoon | Guest Star | Kyehoon (KickFlip) | |
| NEXZ | Guest Star | NEXZ | |
| Park Sung-jin | Guest Star | Sungjin (DAY6) |