Because you like Jesse Tuck in Tuck Everlasting
Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.
James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.
Emma Frost's superpower: transforming her body into an unbreakable diamond. See them in X-Men Series.
Years of constant assault by mean classmates, rude teachers, and her abusive mother is making Carrie White want to fight back. See them in Carrie.
Holden Caulfield is convinced that the whole adult world is full of phonies. See them in The Catcher in the Rye.
Larger than life and wealthy beyond measure, Willy Wonka is more than a titan in the sweets industry; he is an arbiter of taste. See them in Charlie and the Chocolate Factory.
Alex Russo desperately wants to keep her magic – after all, things are so much easier when you can just wave a wand. See them in Wizards of Waverly Place.
Peter Kavinsky is a jock who only cares about getting back at his ex, or so he says. See them in To all The Boys I've Loved Before.
Talking to a stranger on a train is the best decision Jesse Wallace ever made. See them in Before Sunrise.
Working as a captain in the American Expeditionary Forces and a spy for British Intelligence, Steve Trevor wants to end World War I once and for all. See them in DC Extended Universe.
Macbeth was probably named "Most Likely to Kill His Rivals" in his senior yearbook. See them in Macbeth.