못난이 송편

김정화

Kim Joo-hee

오민석

Oh Tae-soo

경수진

Oh Ah-yeong

Jang Ji-Eun

Han So-jeong

김혜옥

Lee Jeong-ja

Ji Nam-hyuk

Han Yeong-min

정보석

Han Moon-gil

주아름

Kim Ye-bin

조정은

Lee Se-jin

Kim Bo Ra

Seo Yoo-min

박근형

Principal (Special appearance)

윤유선

Lee Se-jin's mother

김나운

Ye-bin's mother

천영민

Ji-yeong

서지희

Young Han So-jeong

이유미

Yeon Su-jin

Hye-eun

현숙희

손영순

Grandmother landlady

Kim Soo-hyeon

Won Duk-hyun

Young Oh Tae-soo

육미라

Yoon Jung-eun

Young Oh Ah-yeong

Choi Bum-ho

Ah-yeong and Tae-soo's father

Son Gun-woo

Teacher