애간장

이정신

Kang Shin-Woo

서지훈

Young Kang Shin-Woo

이열음

Han Ji-Soo

Lee Tae-seon

Shin Joo-Hwan

Cho Lee-hyeon

Baek Na-Hee

민도희

Jang So-Ra

Lee Joo-hyung

Choo Geun-Deok

Kim Sun-young

Shin-Woo's mother

Park Han-sol

Kim Yun-jeong

고규필

Mozart student's Head Teacher

김민석

Kim Min Seok