For example Doctor Doom!
Dreadpool
Deadpool (Earth-1610)
Deathstroke
DeadShot
Deep
Dare Devil (Marvel Zombies)
Darkseid
Dallas (Payday)
David Harken
Desmond McCain
D.A.V.E.
David McCall
Dr. Hugo Grief
Doctor Phosphorus
Dr. Diaper
Deathstorm
Darth Vader
Drakken
Darth Maul
Darth Malgus
Darth Baras
Darth Bane
Darth Plagueis
Darth Caedus
Darth Vox
Darth Sideous
Davy Jones
Darth Nihilus
Dr. Jekyll (Once Upon a Time)
Dean Armitage
Dolores Umbridge (even though i hate her)
^I HATE Dolores, capital H
@WowVerySurprising same with mine, she's one of an another most evil Harry Potter villain like Voldemort though she is still unlikable since Voldemort is alright and cool aside of her.
What do you think?
