Because you like Lily Aldrin in How I Met Your Mother

A fun-loving jokester, Alistair isn't ready for the responsibilities he faces. See them in Dragon Age Series.

Insightful about everyone else's neuroses, Rose Lalonde is not as aware of her own. See them in Homestuck.

With a unique ability to empathize with killers, Will Graham helps society but his sanity pays the price. See them in Hannibal.

Artemis Fowl understands the way of the world. If he wins, he's a prodigy. If he loses, then he's crazy. That is how history is written. See them in Artemis Fowl.

A powerful dragon-hunting warrior, Dovahkiin is destined for great things. See them in The Elder Scrolls V: Skyrim.

A rebellious blue-haired art student, Karou has mysterious connections to a magical world. See them in Daughter of Smoke and Bone .

Don't worry about this forensic scientist offing you unless you're a serial killer yourself. (You're not, right? Just checking.) See them in Dexter.

Dimitri Belikov is a stoic vampire guardian who has the reserve, focus, and discipline of a soldier. See them in Vampire Academy .

Kazuma Kiryu's legendary strength and exploits have earned him the nickname of Dragon of Dojima. See them in Yakuza.

Although Morrigan knows every kind of magic there is, friendship is an untested area for her. See them in Dragon Age Series.

Ezio Auditore Da Firenze is a little short-tempered, a lot fun-loving. See them in Assassin's Creed Series.

Teddy Sanders loves his frat brothers so much he might never leave school. See them in Neighbors.