Uhhhhh

Does Askeladd from Vinland Saga count

He did some pretty fxcked up sh!t

Andrias

Alastor, Adam (both from Hazbin Hotel), Arthas Menethil (Warcraft), Amikiri (Kakuranger), Azukiarai (Kakuranger)

Adam hazbin hotel

Aku

Aku & Alastor

Amon Goth

Absolute Solver

AM

Anton Chigurh

Alex DeLarge