Ryu Seung-ryong

Kang Jin-bong

Yum Jung-ah

Oh Se-yeon

Park Se-wan

Young Oh Se-yeon

Ong Seong-wu

Park Jeong-woo

심달기

Hyun-jeong

하현상

Kang Seo-jin

Kim Da-in

Kang Ye-jin

박영규

Jin-bong's Father

김혜옥

Jin-bong's Mother

Jeon Moo-song

Mr. Choi

신신애

Landlady

Kim Jong-soo

Mokpo High School Teacher

Ko Chang-seok

Purser

Yeom Hye-ran

Hyeon-jeong

Kim Sun-young

Jeong-ah

류현경

Homeroom Teacher

김선화

Se-yeon's Boarding House Friend

박경찬

Doctor

정영섭

PD

김인경

Choreography team

황정윤

Nurse