A cappella

Chun Woo-hee

Han Gong-ju

Jung In-sun

Eun-hee

Kim So-young

Hwa-ok

Lee Young-ran

Ms. Lee

Kwon Beom-taek

Chief of Police Substation

Jo Dae-hee

Lee Nan-do

Kimchoi Yong-joon

Dong-yoon

Kim Hyun-joon

Min-ho

Yoo Seung-mok

Han Gong-ju's Father

Seong Yeo-jin

Han Gong-ju's Mother

Kim Jung-pal

Owner of Animal Hospital

Dong Hyun-bae

Swimming Instructor

Son Seul-gi

Min-seo

Lee Chung-hee

Chung-hee

Min Kyung-jin

Vice Principal