Full cast of 20th Century Boy and Girl

Kim Ji-seok

Gong Ji-won

32 episodes

Han Ye-seul

Sa Jin-jin

32 episodes

Lee Sang-woo

Anthony

32 episodes

Ryu Hyun-kyung

Han Ah-reum

32 episodes

Lee Sang-hee

Jang Young-shim

32 episodes

Ahn Se-ha

Jung Woo-sung

32 episodes

Oh Sang-jin

Kang Kyung-sik

32 episodes

Kim Chang-wan

Sa Chang-wan

32 episodes

Kim Mi-kyeong

Kim Mi-kyung

32 episodes

Shin Won-ho

Sa Min-ho

32 episodes

Shin Dong-mi

Choi Jung-eun

32 episodes

Kang Mi-na

Young Sa Jin-jin

32 episodes

Choi Bum-ho

Han Hak-Gyu

32 episodes

Park Myung-shin

Kim Young-Ja

32 episodes

Kim Tae-hun

Lee Seung-Goo

32 episodes

Kim Young-sun

Lee Gwang-Hee

32 episodes

Shin Se-hwi

Lee Ha-Ram

32 episodes

Lee Jae-kyoon

Lee Hong-Hee

32 episodes

Lee You-mi

Mi-Dal

32 episodes

Han Seon-hwa

Jung Da-Young

32 episodes

Jang Jae-ho

Kim Tae-Hyun

32 episodes

Jang He-ryung

Jang Ji-Hye

32 episodes

Jo Hyun-sik

van driver

32 episodes

Lee Han-seo

Han Ah-reum

32 episodes

Cha Seo-won

Lee Dong-Hoon

32 episodes

Shin Dong-hoon

Jung Yung-Jin

32 episodes

Kim Kwang-shik

Jang Gi Bong [Jin Jin's manager]

32 episodes

Han Ji-won

Jang Young-shim (Young)

32 episodes

Lee Joon-gi

Jin Jin's father (Voice)

1 episode