Because you like James P. Sullivan in Monsters, Inc.
Count Olaf is a traveling actor, except he can't act and his homicidal tendencies make finding work pretty difficult. See them in Lemony Snicket's A Series of Unfortunate Events.
Matilda Wormwood is so smart, she taught herself how to be psychic. See them in Matilda.
Tiana lives by a simple motto: "Fairy tales can come true. But you gotta make them happen, it all depends on you." See them in The Princess and the Frog.
Li Shang will make a man out of you—even if you're a girl. See them in Mulan.
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.
Robin Scherbatsky is a former teen pop star who loves dogs and is scared of relationships. See them in How I Met Your Mother.
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.
Turanga Leela is the daughter of two mutants who live in the sewers below New York City. See them in Futurama.
Not even a closed door will deter this eternal optimist. See them in Frozen.
Billy Batson is a troublemaking teen grappling with a pretty weird superhero identity crisis See them in DC Extended Universe.
Nick Wilde is sly like a fox. And not just because he is one. See them in Zootopia.
Kesuke Miyagi is a karate expert who thinks the best way a scrawny high schooler can learn how to defend himself is by washing every surface in sight. See them in The Karate Kid.