| Actor | Role |
|---|---|
 se7enSong Sam-dong / The-K | Song Sam-dong / The-K |
 Lim Se JunJason | Jason |
| KKang Seung SikJin Guk | Jin Guk |
 SunyeYoon Baek-hee | Yoon Baek-hee |
| JJung Dong-hwaKang Oh-hyuk | Kang Oh-hyuk |
 Park Kyeong-rimPrincipal | Principal |
 Ryu Seung-mooMa Doo-sik | Ma Doo-sik |
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