Full cast of All That We Loved

Sehun

Koh You

8 episodes

Cho Jun-young

Koh Jun-hee

8 episodes

Jang Yeo-bin

Han So-yeon

8 episodes

Song Jae-rim

Dr. Koh

8 episodes

Jung Yoo-jin

Han So-yeon (adult)

8 episodes

Lee Seung-joon

Koh You's father

8 episodes

Park Eun-hye

Koh You's mother

8 episodes

Jeong Hye-seon

Koh Jun-hee's grandmother

8 episodes

Jeon Young-in

An Sun-tak

8 episodes

Lee Ara

Shim Jung-eun

2 episodes

Baek Min-hyun

An Sun-tak (adult)

1 episode

Kwon Hyeok-beom

Jeon Sang-kyu

1 episode

Seo Beom-sik

Teacher

1 episode

Myung Jae-hwan

Homeroom Teacher

1 episode

Kim Kyung-nam

Man at the Park

1 episode