Because you like Olivia Benson in Law & Order: Special Victims Unit
Will Byers is just like any other twelve year old, except he's stuck in another dimension. See them in Stranger Things.
Everyone is just a chess piece, and Izaya Orihara is a master player. See them in Durarara!!.
Kyle Broflovski is an motional fourth-grader who plays Guitar Hero, speaks Pig Latin, and fights with his "Fat Ass" friend Cartman. See them in South Park.
Though Twilight might be opposed to it, her new friends might just be able to teach this serious-minded pony how to relax. See them in My Little Pony.
Tony Stonem is the golden boy of Bristol. Problem is, he knows it. See them in Skins.
Ted Mosby is a hopelessly romantic architect in search of someone to be the mother of his children. See them in How I Met Your Mother.
Thanks to the contributions of this 14-year-old, the world is only occasionally destroyed by his grandfather. See them in Rick and Morty.
Knuckles the Echidna is a 16-year-old red echidna (aka a spiny anteater) and guardian of the ancient Master Emerald. See them in Sonic the Hedgehog.
Jane Smith is a stone-cold killer, but you would never know it from looking at her. See them in Mr. & Mrs. Smith.
There are rumors that the Spirit was an Egyptian Pharaoh in his past, but without any memories, he doesn't know how true they are. See them in Yu-Gi-Oh! .
Insightful about everyone else's neuroses, Rose Lalonde is not as aware of her own. See them in Homestuck.