At Eighteen

as

Choi Joon-Woo

as

Yoo Soo-Bin

as

Ma Whi-Young

as

Oh Han-Kyeol

as

Joon-Woo's mother

as

Soo-Bin's mother

as

Choi Myeong-jun

as

Jung Oh-je

as

Park Geum-ja

as

Choi Joon-Woo (young)

as

Yoo Pil-Sang

as

Hwang Ro Mi [Soo Bin's classmate]

as

Director

as

Writer