Still 17(2018)

Gong Woo-Jin

32 episodes

Woo Seo-Ri

32 episodes

Yoo Chan

32 episodes

Jennifer

32 episodes

Kim Tae-Rin

32 episodes

Kang Hee-Soo

32 episodes

Kim Hyeong-Tae

32 episodes

Woo Seo-Ri (young)

32 episodes

Gong Woo-Jin (young)

32 episodes

Jin-hyun

32 episodes

Han Duk-soo

32 episodes

Dong Hae-Beom

32 episodes

32 episodes

Gong Yong Hwan [Gong Woo Jin's father]

32 episodes

Kim Tae-rin's Mother

32 episodes