Who are 16 of your preferito fictional villains

Here mine in no particular order:
Master Xehanort (Kingdom Hearts: Birth by Sleep & Dream Drop Distance)
Ultron (Marvel Comics)
Deathstroke (DC Comics)
Mard Geer Tartaros (Fairy Tail 2014)
The Meta/Agent Main (Red VS Blue)
Rogue Cheney (Fairy Tail 2014)
Starscream (Transformers)
Peter Pan (Once Upon a Time)
Vali Lucifer (High School DxD New)
Caster/Medea (Fate/Stay Night/Unlimited Blade Worls)
Kyouka (Fairy Tail 2014)
Jafar (Once Upon a Time in Wonderland)
Raynare (High School DxD
Alduin (Elder Scrolls: Skyrim)
Seliah (Fairy Tail 2014)
Darth Vader (Star Wars)