Because you like Miles "Tails" Prower in Sonic the Hedgehog

Evan is a sensible kid, but being sensible isn't going to help him lose his virginity. See them in Superbad.

Frodo might have carried the ring, but Samwise Gamgee carried the ring bearer. See them in The Lord of the Rings.

Nicholas Angel is super-dedicated to his job as a police officer. Maybe a little too dedicated. See them in Hot Fuzz.

Will Byers is just like any other twelve year old, except he's stuck in another dimension. See them in Stranger Things.

Red doesn't like to explain herself. She wants her work to do the talking. See them in Transistor.

Dante Alighieri is a crusader fighting his way to absolution. See them in Dante's Inferno.

Everyone is just a chess piece, and Izaya Orihara is a master player. See them in Durarara!!.

Leslie Burke is bold, courageous, and imaginative enough to create a world from scratch. See them in Bridge to Terabithia.

Despite Norman Bates' typically kind and shy personality, he is also prone to occasional violent outbursts. See them in Bates Motel.

Those who stand against this singular super ninja are doomed to fail. See them in Ninja Gaiden.

Leonard Hofstadter is the normal one among his scientist friends, though in fairness that's a low bar. See them in The Big Bang Theory.