Some I totally hate and just want to see destroyed, others have so much style you love watching them no matter how bad they are, some are a bit of both
The Alien
Bill the Butcher
Kathy Bates in "Misery"
Denzel Washington in "Training Day"
Heath Ledger's Joker
nearly every main character (except for the deaf kid) in "There Will Be Blood"
Glenn Close in "Dangerous Liaisons"
Gene Hackman in "Unforgiven"
Judy Dench in "Notes on a Scandal"
Ralph Fiennes in "Schindler's List"
not a movie but Gerald McRaney as Hearst in "Deadwood"
Nosferatu
almost forgot, the old couple down the hall in "Rosemary's Baby" lol, fuck them both!