Totally not testing you, but I'm curious who.
In no particular order
Daniel Plainview (Daniel Day Lewis) in There Will Be Blood - won Oscar for best actor
Anton Chigurh ( Javier Bardem) in No Country for Old Men- won Oscar for supporting actor
Sweeney Todd (Johnny Depp) - nominated for best actor
Hans Landa ( Christoph Waltz) in Inglourious Basterds - won Oscar for supporting actor
Loki
Magneto ( Michael Fassbender ) - First Class
Bernie Ross (Albert Brooks) in Drive
Bane (Tome Hardy) in TDKR
Silva (Javier Bbardem) in Skyfall
Calvin Candie (Leonardo DiCaprio) in Django Unchained
Stephen (Samuel L Jackson) in Django Unchained
Epps (Michael Fassbender ) in 12 Years of Slave - nominated for supporting actor
Kahn (Benedict ) in Start Trek into Darkness
Lou Bloom (Jake Gyllenhaal ) in Nightcrawler
Terence Fletcher (Jk Simmons) in Whiplash - won best supporting actor
The Winter Soldier ...looks cooler
There's that Harry Potter villain or villains too, but I don't watch those films, but they seem popular.