The Joker – Archenemy of Batman. A violent sociopath and a trickster.
Agent Smith – an agent of the Matrix, out to get Neo.
Darth Vader – One of the most iconic villains in film history. The Dark Side of the Force is strong in this one.
Bellatrix Lestrange – One of Voldemort’s Death Eaters. Powerful , EVIL and completely nuts after years in Azkaban.
Biff Tannen – Possesses no super ability except the one to drive both George and Marty McFly crazy: “Hello? Hello? Anybody home?”
Sauron – The Dark Lord of Middle Earth who created the One Ring to control everyone.
His mere presence in the world makes it a darker place.