Hwa Young

Kang Joon-soo

Lee Seung-gi

Hyun-woo

Moon Chae-won

Dong-jin

Lee Seo-jin

Hyo-bong

Jung Joon-young

Lizzy

Jae-joong

Go Yoon

Principal

Im Ha-ryong

Eun-Ji Park

Min-ah

Park Soo-young

Hee-Jin

Ryu Hwa-young

Min-ah

Park Soo-ah

Joon-hee

Sieun

Joon-Hee

Park Si-eun

Han Seong-goo

Ha Kyoung-min

Cha Myung-sun

Park Eun-ji

Joon-soo's Father

Kim Kap-soo

Joon-soo's Mother

Lee Kyung-jin

HQ Chief

Song Young-chang

Hyun-woo's Mother

Kim Bu-seon

Director

Lim Jong-yun

Bald Man

Kim Kwang-kyu

Restaurant Owner

Hong Seok-cheon

Joon-soo's girlfriend

Lee Joo-yeon

Joon-soo's Ex-girlfriend

Lee Ju-yeon

Joon-soo's Ex-girlfriend 1

Kim So-yeon

Joon-soo's girlfriend 2

Son Ga-in

Weather Woman

Park Ji-yeon

Staff

Lee Dong Jin

Joon-hee's Boyfriend

Park Hee-gun

Hyun-Woo (child)

Hong Hwa-Ri

Military Instructor

Lee Young-bum

Joon-soo (child)

Cho Young-joon

Military Assistant Teacher

Lee Young-beom

Baths

Nam Neung Mi