Because you like Charlie Bucket in Charlie and the Chocolate Factory
Troy Bolton is a triple threat: singing, dancing, and basketball. See them in High School Musical.
This master marksman may be a villain, but Deadshot's motives aren't quite as selfish as they seem. See them in DC Extended Universe.
Aslan represents everything good and just, he's just not super reliable. See them in The Chronicles of Narnia.
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.
Marge Simpson is a mostly happy housewife and subscriber to Sponge and Vacuum Magazine. See them in The Simpsons.
The Genie is the perfect buddy, granting every wish we might have and keeping life good-spirited. See them in Aladdin.
N'Jadaka is a righteous man with a violent agenda. See them in Marvel Cinematic Universe.
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.
After years of living vicariously through other people's heroic stories, Wade Watts is about to become a hero himself. See them in Ready Player One.
Alfredo Linguini can whip up five star meals effortlessly. Just don't look under his hat. See them in Ratatouille.
Driven and straightforward with high-technology parts, EVE was sent to Earth to see if it is habitable. See them in WALL-E.