イ・ジョンシン
Kang Shin-Woo
서지훈
Young Kang Shin-Woo
이열음
Han Ji-Soo
Lee Tae-seon
Shin Joo-Hwan
Cho Lee-hyeon
Baek Na-Hee
ドヒ
Jang So-Ra
이주형
Choo Geun-Deok
김선영
Shin-Woo's mother
박한솔
Kim Yun-jeong
고규필
Mozart student's Head Teacher
김민석
Kim Min Seok
