Because you like Xander Harris in Buffy the Vampire Slayer
A wildly brilliant detective, Sherlock Holmes can figure out everything except how to interact with other human beings. See them in Sherlock.
Whether he's fighting or flirting, Jace Wayland is all swagger. See them in City of Bones.
Whether she's working as a mild-mannered assistant or an all-powerful superhero, Kara Danvers is defined above all by her huge heart. See them in Supergirl.
Titus Andromedon will show you the ropes, help you with your problems, and sing at you constantly, whether you like it or not. See them in Unbreakable Kimmy Schmidt.
Where Ash comes from, food and shelter pay for themselves. Even as a penniless vagrant, he is able to pursue his dream of becoming a Pokémon Master See them in Pokemon.
Ichigo Kurasaki is a short-tempered, strong-willed teen who is deeply protective of those he loves. See them in Bleach.
A reformed former outlaw, John Marston doesn't want any trouble, yet somehow trouble always seems to find him. See them in Red Dead Redemption.
A fourth grader without a moral compass, Eric Cartman lives on KFC, Taco Bell, Pizza Hut, and Cheesy Poofs. See them in South Park.
Teddy Sanders loves his frat brothers so much he might never leave school. See them in Neighbors.
A powerful dragon-hunting warrior, Dovahkiin is destined for great things. See them in The Elder Scrolls V: Skyrim.
A super-soldier, Master Chief might be more machine than man. And for humanity's sake, thank God. See them in Halo.