Because you like James Wilson in House M.D.
Howl puts the "tortured" in tortured artist. He just wants to be recognized for his work, but no one wants to trust a boy that sorta looks like a bird. See them in Howl's Moving Castle.
An aloof punk rock goddess, Nana Osaki has a surprisingly big heart. See them in Nana.
A former high school outcast, Rebecca Doppelmeyer is tentatively shaking off her misanthropic personality. See them in Ghost World.
Killua Zoldyck is so tired of killing. He just wants to be a kid, hanging out and doing stuff with his friends. See them in Hunter x Hunter.
Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.
Hiccup Haddock III may be the only Viking nerd in recorded history. See them in How to Train Your Dragon.
His superiority complex coupled with his bitter desire for revenge makes Vegeta a formidable foe. See them in Dragon Ball Z.
A powerful dragon-hunting warrior, Dovahkiin is destined for great things. See them in The Elder Scrolls V: Skyrim.
An opportunistic fugitive-turned-bounty-hunter, Faye Valentine uses both grit and her good looks to get ahead. See them in Cowboy Bebop.
Winnie the Pooh is a chubby little cubby all stuffed with fluff. See them in Winnie the Pooh.