Full cast of Dear Hyeri

Shin Hae-sun

Ju Eun-ho / Ju Hae-ri

12 episodes

Lee Jin-uk

Jeong Hyun-oh

12 episodes

Kang Hoon

Kang Ju-yeon

12 episodes

Jo Hye-joo

Baek Hye-yeon

12 episodes

Kang Sang-jun

Mun Ji-on

12 episodes

Fila Lee

Mun Su-jung

12 episodes

Jeon Bae-soo

Kim Sin-jung

12 episodes

Yoon Ju-man

Jeon Jae-yong

12 episodes

Oh Gyeong-hwa

Kim Min-young

12 episodes

Ahn So-yo

Lee Seung-yoon

12 episodes

Kim Na-mi

Kim Mi-yeon

12 episodes

Hwang Hyun-bin

Hyu-ra

12 episodes

Chang Eun-ah

Eun Shin-young

12 episodes

Jung Chae-won

Lee Ji-won (Eps 7)

1 episode

Gu Hyun

Jung Hyeon O (child)

1 episode