In Our Prime

Choi Min-sik

as

Ri Hak-sung

Kim Dong-hwi

as

Han Ji-woo

Park Hae-joon

as

Ahn Gi-chul

Park Byung-eun

as

Kim Geun-ho

Jo Yoon-seo

as

Park Bo-ram

Tang Joon-sang

as

Tae-yeon

Kim Won-hae

as

Park Pil-joo

Ju Jin-mo

as

Professor Oh

Kim Hee-jung

as

Bo-ram's Mother

Kang Mal-geum

as

Ji-woo's Mother

Joo Ye-rin

as

Korean Teacher

Jung Seung-kil

as

NIS Agent

Shin Jae-hwi

as

Student 5

Kang Joon-kyu

as

Ui-joon

Kim So-suk

as

Principal

Choi Jae-sup

as

Hanbok Teacher

Ro Jong-hyun

as

Ddal-bong