20th Century Girl

Kim Yoo-jung

(Na Bo-ra)

Byeon Woo-seok

(Poong Woon-ho)

Park Jung-woo

(Baek Hyun-jin)

Roh Yoon-seo

(Kim Yeon-du)

Kim Sung-kyung

(Bo-ra's Mother)

Jeong Seok-yong

(Bo-ra's Father)

Yoon Yi-reh

(Madam)

Jeon Hye-won

(Darn It)

Kim Nu-rim

(Dong-wook)

Han Hyo-joo

(Adult Na Bo-ra)

Lee Beom-soo

(School Teacher)

Ryu Seung-ryong

(Poong Woon-ho's Father)

Park Hae-joon

(Doctor at School Infirmary)

Gong Myoung

(Jung Woon-ho)

Ong Seong-wu

(Joseph / Poong Joon-ho)

Kang Chae-young

(Bok-soon)

Bang Woo-ri

(Yeon-du's Mother)

Lee Cheon-mu

(Bo-ra's Brother)

Jo Ji-hyeon

(Teacher)

Lee Woo-sung

(Min Hong-gi)

Choi Kyo-sik

(Mailman)

Jeong Min-jun

(Young Joseph)

Shin Dong-ryeok

(Mulberry Extract Vendor)