Because you like George Costanza in Seinfeld

On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.

Nick Carraway is the perfect observer: always there for the events, but never too involved. See them in The Great Gatsby.

An alien, a time-traveler, and an esper are following Haruhi Suzumiya, who – unknown to herself – is a near-omnipotent reality warper. See them in The Melancholy of Haruhi Suzumiya.

Tom Hansen is a full-fledged romantic impatiently waiting for his love story. See them in (500) Days of Summer.

Jacob Kowalski is just a baker caught up in an otherworldly adventure. See them in Fantastic Beasts and Where To Find Them.

Rukia Kuchiki is a cool and collected warrior who has trouble opening up to anyone. See them in Bleach.

A crabby troll, Karkat Vantas is perpetually angry about his lot in life. See them in Homestuck.

Georgina Sparks uses beauty, brains, and power to always get her way. See them in Gossip Girl.

Catwoman might be slightly unhinged, but you can't say this feline villainess isn't confident. See them in DC Extended Universe.

Liesel Meminger is trying to ease the suffering of those around her, German and Jew alike. See them in The Book Thief.