Cast from Twenty Again

Choi Ji-woo

Ha No-Ra

Ha Seung-lee

Ha No-Ra (young)

Lee Sang-yun

Cha Hyun-Seok

Kim Hee-chan

Cha Hyun-Seok (young)

Choi Won-young

Kim Woo-Cheol

Kim Min-jae

Kim Min-Soo

Son Na-eun

Oh Hye-Mi

Park Hyo-ju

Kim Yi-jin

Jin Ki-joo

Park Seung-hyun

Noh Young-hak

Na Soon-nam

Seo Han-gyeol

Lee Man-gi