นิยามรักฉบับครอบครัว

정수정

To-il

장혜진

Seon-myeong

최덕문

Tae-hyo

신재휘

Ho-hoon

이해영

Hwan-gyu

강말금

Ho-hoon's Mother

남문철

Ho-hoon's Father

장햇살

Bok-nam

김준범

Teacher Choi

김미향

Material Grandmother

이주원

Teacher Choi

신미영

Fried Food Customer

Lee Seung-chul

Badminton Club Member

Ahn Jae-Min

Ho-hoon's Friend

Park So-eun

Wedding Guest

김늘메

Badminton Club Member