Because you like GLaDOS in Portal Series

A born psychopath, don't expect Michael Myers to understand the difference between right and wrong. See them in Halloween.

Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.

This power-hungry Time Lord calls himself the "master of all." Bonus: he has 13 lives. See them in Doctor Who.

The personification of America is all about superheroes, hamburgers, and spreading democracy and justice. See them in Axis Powers Hetalia.

Wario is greedy, gross, and gluttonous. See them in WarioWare.

T'Challa is a regal superhero with the weight of the world (and particularly his nation) on his shoulders. See them in Marvel Cinematic Universe.

Leonard "Bones" McCoy is passionate, moral, and ready to stitch you back together. See them in Star Trek.

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.

For Sly Cooper, stealing isn't just about the haul. It's also about the journey. See them in Sly Cooper.

Kyle Broflovski is an motional fourth-grader who plays Guitar Hero, speaks Pig Latin, and fights with his "Fat Ass" friend Cartman. See them in South Park.

Chuckie Finster is a baby afraid of everything from clowns to closets, unless his best friend's by his side. See them in Rugrats.

With an A.I. as loyal and witty as Cortana, who needs humans? See them in Halo.