낭랑 18세

이동건

Kwon Hyeok-Jun

한지혜

Yoon Jung-sook

이준

Ji Nam-Cheol

김해숙

Jung-Sook's mother

Lee Da-hee

Mun Ka-Yeong

이은주

Seo Hyun-Ju

정경호

Jung Sook's blind date

고규필

Hyuk Joon's co-worker