Full cast of Our Happy Days

Yoon Jong-hoon

Ko Gyeol

120 episodes

Uhm Hyun-kyung

Cho Eun-ae

120 episodes

Shin Jung-yoon

Ko Min-ho

120 episodes

Yoon Da-young

Seo Seung-ri

120 episodes

Yoon Da-hoon

Ko Dae-chi

120 episodes

Yoo Jin-seok

Seo Sung-woo

120 episodes