Gu Do-hyung

Backdoor

TV · as Seo Ji-hyuk · 20 eps

The Substitute

TV · as Jin-hyuk · 10 eps

The Practical Guide to Love

TV · as Jun-hyung · 12 eps

Villains Everywhere

TV · as Student President · 24 eps

Miss Baek: The Dating Master

TV · as Oh Dong-hyun · 1 ep