Because you like Toph in Avatar: The Last Airbender

Tom Haverford is set on being a world-renowned entrepreneur who dates models. Problem is, he's stuck in Indiana with a lazy business partner. See them in Parks and Recreation.

Carolos has perfect hair, a lab coat, and a constant readiness to do science. See them in Welcome to Night Vale.

The cutest kitty this side of the galaxy, Nepeta Leijon is mischievous, caring, and obsessed with romance. See them in Homestuck.

After Rintarou Okabe develops the Phone Microwave, some of his fantasies start to seem uncomfortably real. See them in Steins;Gate.

It's a race against time to develop his theory of the origins of the Universe before Stephen Hawking's body and mind give out. See them in The Theory of Everything.

Mrs. Lovett is the proud purveyor of the worst, and most grisly, pies in London. See them in Sweeney Todd: The Demon Barber of Fleet Street.

England may cultivate the image of a well-bred gentleman, but he has both the temper and mouth of a seasoned sailor. See them in Axis Powers Hetalia.

Living with a curse, Kyo Sohma is sick of being treated like garbage his whole life. See them in Fruits Basket.

Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.

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

The vampire that killed Zero Kiryu's family also infected him, and he starts to crave blood, much to his horror. See them in Vampire Knight.