Full cast of Dear X

Kim You-jung

Baek Ah-jin

12 episodes

Kim Young-dae

Yoon Joon-seo

12 episodes

Kim Do-hoon

Kim Jae-oh

12 episodes

Lee Yul-eum

Lim Le-na

12 episodes

Kim Yu-mi

Hwang Ji-seon

11 episodes

Kim Yi-kyeong

Sim Sung-hee

8 episodes

Kim Ji-young

Seo Mi-ri

8 episodes

Hong Bi-ra

Moon Do-hui

8 episodes

Son Kang-gook

An Do-gang

6 episodes

Kim Ji-hoon

Choi Jeong-ho

5 episodes

Ryu Kyeong-hwan

Im Hui-guk

5 episodes

Hong Jong-hyun

Moon Do-hyeok

5 episodes

Kim Il-woo

Hong Su-hyeok

5 episodes

Bae Soo-bin

Baek Seon-gyu

4 episodes

Hwang In-yeop

Heo In-gang

4 episodes

Hyun Seo-ha

Seok Hyang-i

4 episodes

Jeon Kuk-hwan

Jun-seo's Grandfather

4 episodes

Lee Woong-jae

Heo In-mo

4 episodes

Kim Min-song

Tattoo Man

4 episodes

Kim Nam-hee

Documentary Host

4 episodes

Kang Ian

Art Teacher

3 episodes

Park Seoung-tae

Heong Gyeong-tae

3 episodes

Shin Mun-sung

Park Dae-ho

3 episodes

Park Seung-wan

Jo Yoo-sik

3 episodes

Lee Seo-an

Lim Sun-ye

2 episodes

Gi So-you

Child Baek Ah-jin

2 episodes

Park Hoo

Child Yoon Jun-seo

2 episodes

Go Seo-hee

Madam Gong

2 episodes

Park Bu-keon

Director Park

2 episodes

Bae Jin-ah

Mrs. Kwak

2 episodes

Hyeon Jin

Sim Sung-hee's Mom

1 episode

Yoon Joo

Class Teacher

1 episode

Kwon Su-yeon

Yu-bin

1 episode

Shin Eun-hye

Ga-yeong

1 episode

Woo Doo-yeon

Ethics Teacher

1 episode

Baek Sun-ho

Xanadu Coffee customer

1 episode

Jung Woo

Seol Yeong-uk

1 episode

Choi Sol-hee

Jae-oh's Aunt

1 episode

Yoon Hyun-soo

Ryu Ji-hyeok

1 episode

Kim Se-yoon

Detective

1 episode

Lee Seung-jin

Detective

1 episode

Kim Sang-il

Im Seung-yong

1 episode

Choi Jae-yoon

Child Kim Jae-ung

1 episode

Gu Bon-jin

Jae-oh's Father

1 episode

Cho Mi-yeon

Host

1 episode

Kim Kyu-do

CEO of Dio Entertainment

1 episode

Oh Jae-se

Detective

1 episode

Ma Jeong-pil

Sim Sung-hee's Dad

1 episode

Jeong Jong-hoon

Principal

1 episode

Jeong Eun-ran

Housekeeper

1 episode

Choi Ji-yeon

Reporter

1 episode

Park Seong-gyoon

News Editor

1 episode

Son Gun-woo

Director

1 episode

Im Yu-ran

Convenience Store Owner

1 episode

Park Dong-il

Mrs. Kwak's Husband

1 episode

Seo Chae-han

Class President

1 episode

Jang Eun-seo

Neighbor

1 episode

Kim Min-che

Neighbor

1 episode

Yeo Dae-hyun

Detective

1 episode

Kim Jae-il

Internal Affairs Officer

1 episode

Seo Hye-jin

Staff

1 episode

Lee Dong-kyu

In-gang's Manager

1 episode

Hong Min-gi

Man 1

1 episode