Kadro (15)
Lee Jung-minJung Lee Won
Lee Ye-hwanKim Ji Oh
Park Chang-hoonKo Yu Gyeom
Lee Sang-minWoo Sun Woo
Jeon Sa-raKim Do Yeon
Jo So-youngSo Young
DawonDa Won
Park Young-un[Yu Gyeom's Junior]Kim Na-hyun[Professor]
Su HyunJung Lee Jin [Lee Won's Sister]
지종호Jong-ho
Natasit Uareksit[Himself]
Kornthas Rujeerattanavorapan[Himself]
Kim Dong-Kyu[Professor]
Bang Jin Won[Unknown Classmate]