이정신

Kang Shin-Woo

서지훈

Young Kang Shin-Woo

Yul-Eum Lee

Han Ji-Soo

Lee Tae-seon

Shin Joo-Hwan

Cho Lee-hyeon

Baek Na-Hee

민도희

Jang So-Ra

이주형

Choo Geun-Deok

Kim Sun-young

Shin-Woo's mother

박한솔

Kim Yun-jeong

Ko Kyu-phil

Mozart student's Head Teacher

Kim-Min Seok

Kim Min Seok