It's Okay, That's Love

Kyung-soo Do

Han Gang-Woo

Zo In-sung

Jang Jae-Yeol

Kong Hyo-Jin

Ji Hae-soo

Su-Young Park

Doctor Im

Sang-woo Do

Choi Ho

Yang Ik-joon

Jang Jae Beom

Sung Dong-il

Jo Dong-min

Kwang-Soo Lee

Park Soo-gwang

Jin Kyung

Lee Young-Jin

Hwa-yeon Cha

Jae-yeol's mother

Lee Song-Kyoung

Oh So-nyeo

Ha-Ra Goo

Jae-yeol's Fan

Choi Dong-Gu

Patient

Han Yeo-wool

Soo-kwang's co-worker

Kang Chul-sung

Prison officer

Kang Ju-eun

Ji Hae-soo (young)