“Flatterer” tells the story of various quirky high school students who relate to each other while navigating their school lives. Park Gun is a student who transfers to a countryside school and becomes the subordinate to his older classmates.
| Actor | Role |
|---|---|
 Ryu Ui-hyunPark Gun | Park Gun |
 Kim Ji-minBong-hee | Bong-hee |
 Kang You-seokKang Dae-chi | Kang Dae-chi |
| 동동현배Kim Ho-gul | Kim Ho-gul |
 Kwak Min-hoPark Tae-san | Park Tae-san |
 Jung Kyung-hoBoss | Boss |
 Yang JunYang Jun | Yang Jun |