Because you like Miles "Tails" Prower in Sonic the Hedgehog
Ursula will oh-so-generously grant your wishes for a price. See them in The Little Mermaid.
Garnet is a Crystal Gem who'll protect her friends with her life. See them in Steven Universe.
Claire Standish is a popular, perfect princess who's deeper than she seems. See them in The Breakfast Club.
John Wick is a widowed former Navy Seal who becomes a notoriously effective hitman, killing over 124 people with gunshots alone. See them in John Wick.
Miles Morales was bitten by a radioactive spider, put on the webbed spandex, and beat up his first bad guy before his voice changed. See them in Marvel Cinematic Universe.
In a rag-tag group of kids determined to take down the imperialistic Fire Lord, Katara is the glue that holds them together. See them in Avatar: The Last Airbender.
This lab mouse has one thing on his huge brain: trying to take over the world on a nightly basis. See them in Pinky and the Brain.
Squidward Tentacles is a pretentious clarinet player in search of peace and quiet. See them in SpongeBob SquarePants.
Undercover as an average high school student, Kallen Stadtfeld is actually most at ease when the action's fast, furious, and dangerous. See them in Code Geass.
Maurice Moss is a dedicated IT guy who even talks like a computer. See them in The IT Crowd.