The phrase "screen villains" refers to the bad guys or mean characters that appear in movies or TV shows. They are the ones who cause trouble or harm to the protagonist or other characters in the story. Full definition
This sequel to Batman Begins is better than its predecessor, and Ledger's Joker will go down as one of the best screen villains of all time. (movie-gazette.com)
His Bill the Butcher is one of the best screen villains in years, but he's much more than just a villain. (markreviewsmovies.com)
Oscar - winner Javier Bardem steals the show as the most unnerving screen villain in years, while almost as engaging are Tommy Lee Jones» performance as an aging gunslinger and Josh Brolin's as a morally - compromised rogue on the run from a harrowing existential Hell. (kamwilliams.com)