Johan Liebert, Judge Holden, Anton Chigurh, Patrick Bateman, Amon Goeth, Lavrentiy Beria, Michael Myers, and Edwin Epps.

Scar, Lots-O, Bill Cipher, Palpatine, Voldemort, Syndrome, Vecna/Mind Flayer, Beldam, and Dio Brando.

The Lord Commander, Dr. Emilia, Bill Cipher, Sauron, The Lich, Lucas Baker, 2017 Taurus Bulba, and Death (Netflix Castlevania).

Light Yagami, Bill Cipher, Anton Chigurh, Albert Wesker, Hans Gruber

Gigan, King Ghidorah (Monsterverse version), SCP-5049-1, William Afton (original), and SCP-106.

Too many to say, but among them are Palpatine, Judge Claude Frollo, Anton Chigurh, Ego, Mysterio, Kilgrave, Joker, Darkseid, Koba, Johan, Lotso, Syndrome, Scar, Beldam, etc

Light Yagami, Johan Liebert, Sosuke Aizen, and Griffith to name a few

Palpatine, Darth Krayt, Sundowner, Eredin, DIO, The Major, The Khan Maykr, Anton Chigurh, Sauron, Death from Netflix Castlevania, Vladimir Makarov, Vitiate, The Joker from the 2004 Batman series, Apollyon, Pontiff Sulyvahn, The Prophet of Truth.

@Blueninja825 2004 Joker gets way more shit than he deserves. KMR was great at him, weird to have an "Evil is Deep" joker but he made it work.