| Name | Character | Episodes |
|---|---|---|
| Clara Lee | Self - Various Characters | 38 |
| You Hee-yeol | Self - Various Characters | 38 |
| Jay Park | Self - Various Characters | 37 |
| Jeong Yeon-joo | Self - Various Characters | 33 |
| Jang Young-nam | Self - Various Characters | 16 |
| Jung Woong-in | Self - Various Characters | 8 |
| Chloë Grace Moretz | Self | 2 |
| Jung Chae-yeon | Self | 2 |
| Kim Se-jeong | Self | 2 |
| Kim Dong-hyun | Self | 2 |
| Taemin | Self | 2 |
| Eric Nam | Self | 2 |
| Kang Mi-na | Herself | 1 |
| Tom Hiddleston | Self | 1 |
| Jang Hyuk | Self | 1 |
| Ken Jeong | Self | 1 |
| Seo In-guk | Self | 1 |
| Zhou Jieqiong | Herself | 1 |
| Kim Do-yeon | Herself | 1 |
| Lim Na-young | Herself | 1 |
| Park Ji-hoon | Himself | 1 |
| Lee Joon | Himself | 1 |
| Minho | Self | 1 |
| Kim Gyu-ri | Herself | 1 |
| Park Sung-woong | Self | 1 |
| Lee Hanee | Herself | 1 |
| Ok Taec-yeon | Self | 1 |
| Kim Hie-won | Himself | 1 |
| Kim Dong-wook | Himself | 1 |
| Lee Beom-soo | Himself | 1 |
| Shin Eun-kyung | Self | 1 |
| Joon Park | Himself | 1 |
| Miranda Kerr | Herself | 1 |
| Lee Kyung-kyu | Self | 1 |
| Jessica Gomes | Herself | 1 |
| Chungha | Herself | 1 |
| Kim So-hye | Herself | 1 |
| Yu Oh-seong | Self | 1 |
| Yoon Je-moon | Himself | 1 |
| Park Jin-young | Self | 1 |
| Amber Liu | Herself | 1 |
| Margaret Cho | Self | 1 |
| Ye Ji-won | Herself | 1 |
| Jason Mraz | Self | 1 |
| Kim Min-jun | Himself | 1 |
| Ryohei Otani | Himself | 1 |
| Kim Da-hyun | Self | 1 |
| Yoshihiro Akiyama | Self | 1 |
| Nam Bo-ra | Herself | 1 |
| Choi Yoo-jung | Herself | 1 |
| Song Ji-eun | Herself | 1 |
| Kim Sung-su | Himself | 1 |
| Zico | Himself | 1 |
| Jeon So-mi | Herself | 1 |
| Nichkhun Horvejkul | Self | 1 |
| Yeonjung | Herself | 1 |
| Choi Min-soo | Himself | 1 |
| Jung Doo-hong | Himself | 1 |
| Lee Hye-ri | Herself | 1 |