10 Terrifying Anime Villains Even Scarier Than My Hero Academia's 

White Frame Corner

acnologia  ( fairy tail )

Barragan Luisenbarn  ( Bleach )

gecko moria  ( one piece )

the cancer   (cells at work)

gun devil  ( chainsaw man )

yamori tokyo (ghoul kakuja)

The Spider Father ( demon slayer )

Mannish Boy  (JoJo's Bizarre  Adventure)

orochimaru (naruto

Pride Is All-Seeing  ( Fullmetal Alchemist Brotherhood )