Because you like Inigo Montoya in The Princess Bride
For Wreck It Ralph, it's not easy being the bad guy. Especially when you've been designed to destroy but really desire love. See them in Wreck-It Ralph.
Bob Parr is an ex-superhero now focused on being a dad, but he misses the action. See them in The Incredibles.
This cannibalistic villain may be a loner, but Killer Croc doesn't have problems with self-confidence. See them in Suicide Squad.
Jacob Kowalski is just a baker caught up in an otherworldly adventure. See them in Fantastic Beasts and Where To Find Them.
Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.
On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.
Jyn Erso is a rebellious criminal tasked with stealing the blueprint to the Death Star to find its fatal flaw before it destroys the planet. See them in Rogue One.
Viking Astrid Hofferson has it all: brains, brawn, and some killer braids. See them in How to Train Your Dragon.
A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.
Dallas Winston is headed down a dangerous, criminal road. See them in The Outsiders.
Benoit Blanc is Sherlock with Southern charm, and a mysterious benefactor. See them in Knives Out.
Edmund Pevensie isn't a bad person, but he did sell his siblings out for a tin of Turkish Delight. See them in The Chronicles of Narnia.