Because you like Crowley in Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch
Don't ask Rosa Diaz, a Brooklyn detective, to lighten up. Actually, to be safe, don't ask her to do anything! See them in Brooklyn Nine-Nine.
Frodo might have carried the ring, but Samwise Gamgee carried the ring bearer. See them in The Lord of the Rings.
Greg Heffley will be famous someday, but now he's stuck in class with morons. See them in Diary of a Wimpy Kid.
Garnet is a Crystal Gem who'll protect her friends with her life. See them in Steven Universe.
Dewey Finn will rock you. He feels rock and roll in his blood and guts. See them in School of Rock.
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.
Rogue's touch is literally deadly, and she's trying to learn from the older mutants how to manager her powers. See them in X-Men Series.
Turanga Leela is the daughter of two mutants who live in the sewers below New York City. See them in Futurama.
Handsome Jack is wearing a mask of his own face to hide his scarred real one. See them in Borderlands Series.
Xander Harris' life motto: laugh in the face of danger and then hide until it goes away. See them in Buffy the Vampire Slayer.
An inter-dimensional demon, Bill Cipher dreams of a more chaotic Gravity Falls. See them in Gravity Falls.