Because you like Clara Oswald in Doctor Who
Give in to the dark side with vampire Lestat; it's more fun. See them in Interview with the Vampire: The Vampire Chronicles.
The Grinch's heart is just too small to appreciate Christmas. See them in Dr. Seuss' How the Grinch Stole Christmas.
Stuck in space, Ryan Stone will either make it back to Earth and have one hell of a story to tell. Or she will burn into the ether. See them in Gravity.
There isn't a man in the world who executes his job with more finesse than Monsieur Gustave H. See them in The Grand Budapest Hotel.
Kind and friendly, Rinoa Heartilly is nonetheless an effective freedom fighter. See them in Final Fantasy Series.
The personification of America is all about superheroes, hamburgers, and spreading democracy and justice. See them in Axis Powers Hetalia.
With an undeniable sense of adventure, Huck Finn is an expert at getting into and, more importantly, out of sticky situations. See them in The Adventures of Huckleberry Finn.
Megamind is searching for purpose in a supervillain life without a superhero to fight. See them in Megamind.
Sylar's victims are found all over the country, many with their brains removed. See them in Heroes.
A malevolent dark wizard, Voldemort is so fearsome that he's known primarily as "He Who Must Not Be Named." See them in Harry Potter Series.
Dallas Winston is headed down a dangerous, criminal road. See them in The Outsiders.