Because you like John Dorian in Scrubs
If there's power in being average, Mikado Ryugamine will find it and use it. See them in Durarara!!.
A vampire hunter, Integra Hellsing doesn't tolerate failure, least of all her own. See them in Hellsing.
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.
Edward Elric has a quick mind along with a quick temper. See them in Fullmetal Alchemist.
Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.
Courteous, dangerous, and powerful, Kaname Kuran controls an entire court of vampires. Very, very pretty vampires. See them in Vampire Knight.
Oscar Jarjayes is a sword-swinging, fearless Commander of the Royal Guard who cross-dresses as a man. See them in Rose of Versailles.
Daenerys Targaryen will take what is hers with fire and blood. Thankfully, she has some dragons by her side. See them in Game of Thrones.
Few high school students could be less concerned with labels. See them in Ouran High School Host Club.
A crabby troll, Karkat Vantas is perpetually angry about his lot in life. See them in Homestuck.
If Anna Liebert could remember her past, maybe she would know who she is. See them in Monster (TV Show).