Because you like Troy Bolton in High School Musical
Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.
Peter Pevensie shows as much courage as a child king as he did under The Blitz of London. See them in The Chronicles of Narnia.
Nick Carraway is the perfect observer: always there for the events, but never too involved. See them in The Great Gatsby.
Marshall Eriksen is a lawyer in love who is enjoying life. See them in How I Met Your Mother.
Will Turner is an earnest, lovelorn blacksmith's assistant with an adventurous spirit. See them in Pirates of the Caribbean: the Curse of the Black Pearl.
The Grinch's heart is just too small to appreciate Christmas. See them in Dr. Seuss' How the Grinch Stole Christmas.
Emma Frost's superpower: transforming her body into an unbreakable diamond. See them in X-Men Series.
David Nolan is a noble fairy tale prince with the heart of a hero, regardless of whether he can remember his past or not. See them in Once Upon a Time.
Vanellope von Schweetz is princess of the Sugar Rush game who could care less about being royal. See them in Wreck it Ralph.
Once a handsome prince, the Beast is now a grumpy, furry, monster. It's hard to pinpoint which mammal he resembles the most. See them in Beauty and the Beast.
Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.