Because you like Sandy Cheeks in SpongeBob SquarePants
Milhouse Van Houten is happy to be second banana. See them in The Simpsons.
Waylon Smithers would do anything for his boss, and would love to do a few things *to* him. See them in The Simpsons.
Applejack's practicality complements her caring nature. She is the loyalest of friends and the most dependable of ponies. See them in My Little Pony.
Michaelangelo is an above-ground crime-fighter by night, and a pizza-eating, sewer-dwelling mutant ninja turtle by day. See them in Teenage Mutant Ninja Turtles.
A stylish agent, Agent J would rather improvise than play by the rules. See them in Men in Black.
Dorothy Gale is a down-home Kansas girl in a bizarre fantasy land with beautiful red shoes. See them in The Wizard of Oz.
Tina Goldstein is better at getting the job done than following the rules. See them in Fantastic Beasts and Where To Find Them.
D.J. Tanner is a rebellious teen who wishes her lame dad would butt out of her personal life. See them in Full House.
Princess Bubblegum is brilliant and determined, but can display a nasty temper. See them in Adventure Time.
Remy could be a five star Michelin chef, the only problem is that he is quite literally a rat. See them in Ratatouille.
Donkey is proof that if you're annoying enough you can change the world; he's the reason that his friend Shrek does, well, anything. See them in Shrek.
Kristoff may seem standoffish, but this ice harvester has a warm heart. See them in Frozen.