어쩌다, 결혼

Kim Dong-wook

Sung-seok

Ko Sung-hee

Hae-joo

Hwang Bo-ra

Mi-yeon

Kim Eui-sung

Chang-gyu

İm Ye-jin

Hae-joo's mother

Yum Jung-ah

Mrs. Chun

Han Soo-hyun

Hae-joo's eldest brother

이채은

Oh Hye-jin

Jo Woo-jin

Mr. Seo

Kang Shin-chul

Lee Jae-young

남지현

Kim Shin-a

Kim Sun-young

Cho Su-jung

Yoo Seung-mok

Coach

Lee Jun-hyeok

Photographer

민무제

Hae-joo's second brother

Cha Rae-hyung

Hae-joo's youngest brother

Jung Woo-sung

Traffic police (cameo)

Lee Jung-jae

Lawyer (cameo)

조윤희

Bae Mi-ra

윤도건

Jung Ju-seok