Because you like Bridget Jones in Bridget Jones's Diary

Eren Jaeger will erase the Titans from this world until not a single one remains. See them in Attack on Titan.

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

From his attire to his form while running, aesthetics rule Rei Ryugazaki's life. See them in Free! Iwatobi Swim Club.

He's the great Black Star, and he's come to assassinate you. See them in Soul Eater.

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

The main priority for Nagisa Hazuki is making sure that everyone has fun. See them in Free! Iwatobi Swim Club.

Driven, resentful, and ruthless, Mello is an emotional powder keg. It's only a matter of time before he explodes. See them in Death Note.

Be careful around Marie Laveau. There's no one more vengeful than a double-crossed voodoo queen. See them in American Horror Story.

When Rin Matsuoka is not swimming, he mostly spends his time brooding or listening to angry Dubstep. See them in Free! Iwatobi Swim Club.

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.

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