Because you like James P. Sullivan in Monsters, Inc.
Luis is a deliverer of silver linings and long-winded stories. See them in Marvel Cinematic Universe.
Ursula will oh-so-generously grant your wishes for a price. See them in The Little Mermaid.
Joe West is overprotective and secretive when his children are involved. See them in DC Extended Universe.
Billy Batson is a troublemaking teen grappling with a pretty weird superhero identity crisis See them in DC Extended Universe.
Illiterate and oblivious, Crash Bandicoot is still a hero. See them in Crash Bandicoot.
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.
Others see him as the town nutcase, but Flint Lockwood knows his inventions will change the world someday. See them in Cloudy with a Chance of Meatballs.
Cinderella will sacrifice herself to keep her family's memory alive. See them in Cinderella (Live Action).
A karate master/rocket scientist/squirrel, Sandy Cheeks is the only one who can clean up the other resident's messes in Bikini Bottom. See them in SpongeBob SquarePants.
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.
Matilda Wormwood is so smart, she taught herself how to be psychic. See them in Matilda.