Hello, My Twenties!

Han Ye-ri

Yoon Jin-myung

Han Seung-yeon

Jeong Ye-eun

Park Eun-bin

Song Ji-won

Ji Woo

Yoo Eun-jae

Choi A-ra

Jo Eun

Kim Min-seok

Seo Jang-hoon

An Woo-yeon

Heimdal

Shin Hyun-soo

Yoon Jong-yeol

Son Seung-won

Lim Sung-min

Lee You-jin

Kwon Ho-chang

Shin Se-hwi

Ahn Ye-ji

Ha Eun-seol

Han Yu-kyung

Choi Bae-young

Song Kyung-ah

Song Jae-ryong

Head Jo [Jin Myeong's boss]

Lee Kyung-sim

Eun-jae's mother