도레미파솔라시도

장근석

Sin Eun‑gyoo

차예련

Yoon Jeong‑won

임주환

Yoon Jae‑kwang

정의철

Kang Hee‑won

박민지

Sin Na‑ri

이효춘

Eun-gyoo's Mother

Song Yool-Kyu

Deok-Pal

김혜옥

Jeong-won's Mother

강건향

Director, Screenplay

귀여니

Novel

Lim Chun-woo

Producer

Lee Hwan-jin

Music

김현옥

Production Design

김일준

Lighting Director