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

Shim Dal-gi

Hyun-jeong

Ha Hyun-sang

Kang Seo-jin

Kim Da-in

Kang Ye-jin

Park Young-kyu

Jin-bong's Father

Kim Hye-ok

Jin-bong's Mother

Jeon Moo-song

Mr. Choi

Shin Shin-ae

Landlady

Kim Jong-soo

Mokpo High School Teacher

Ko Chang-seok

Purser

Yeom Hye-ran

Hyeon-jeong

Kim Sun-young

Jeong-ah

Ryu Hyun-kyung

Homeroom Teacher

Kim Sun-hoa

Se-yeon's Boarding House Friend

Park Kyung-chan

Doctor

Joung Young-sub

PD

Kim In-kyung

Choreography team

Hwang Jung-yoon

Nurse