Because you like Tara Maclay in Buffy the Vampire Slayer
A great galactic bounty hunter, Samus Aran is not as good at expressing emotions. See them in Metroid.
Though he has a brilliant mind for mathematics, Christopher has a much harder time processing the rest of the world. See them in The Curious Incident of the Dog in the Night-Time.
Clank is the quintessential rational, intelligent robot sidekick. See them in Ratchet & Clank.
After alien Haruko rides in on her Vespa, giant robots spouting from Naota Nandaba's forehead soon become the least of his worries. See them in FLCL.
Waylon Smithers would do anything for his boss, and would love to do a few things *to* him. See them in The Simpsons.
Part of an elite team of investigators, Abby Sciuto is the happiest Goth to ever work in law enforcement. See them in NCIS.
Winry Rockbell is an energetic tomboy mechanic with an empathetic streak. See them in Fullmetal Alchemist.
Alien insists on taking the party with him wherever he goes. And if you're lucky, you'll get to see his gun collection. See them in Spring Breakers.
Nadine Franklin likes to wallow in her misery almost as much as she likes to torment her mother. See them in The Edge of Seventeen.
Socialite-turned-runaway-turned-waitress, Rachel Green is the legendary story of riches to rags, trying to work her way up again with the help of her friends. See them in Friends.
Chuck Bass is notorious for his flamboyant sense of style and love of partying. See them in Gossip Girl.
Regina Mills is a cold evil queen turned chilly town mayor. See them in Once Upon a Time.