Moment at Eighteen

Ong Seong-wu

Choi Joon-Woo

Kim Hyang-gi

Yoo Soo-Bin

Shin Seung-ho

Ma Whi-Young

Kang Ki-young

Oh Han-Kyeol

Shim Yi-young

Joon-Woo's mother

Kim Sun-young

Soo-Bin's mother

Choi Jae-woong

Choi Myeong-jun

Moon Bin

Jung Oh-je

Jeong Young-joo

Park Geum-ja

Jung Hyeon-jun

Choi Joon-Woo (young)

Yoo İn-soo

Yoo Pil-Sang

Han Sung-min

Hwang Ro-mi

Kim Bo-yoon

Kwon Da-hwin

Moon Joo-yeon

Yoon So-ye

백재우

Go Dong

허영지

Kim Ji-min

Kim Kwang-shik

[Oh Je's father]

Lee Do-hyun

[Sang Hoon's father]