Because you like Marlena Rosenbluth in Water for Elephants

After several hundred years of shutting himself out from the rest of the world, Japan's not used to dealing with nations, See them in Axis Powers Hetalia.

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.

A vampire hunter, Integra Hellsing doesn't tolerate failure, least of all her own. See them in Hellsing.

Jonathan Byers is a kindhearted outcast who tends to be in the wrong place at the wrong time. See them in Stranger Things.

Funny, self-destructive, and in her own head, Fleabag has spent most of her adult life using sex to deflect from the screaming void inside her empty heart. See them in Fleabag.

Number Five is a 58-year-old man trapped in his 13-year-old body. See them in The Umbrella Academy.

Twisted and seemingly soulless, Bellatrix Lestrange finds joy in making others suffer. See them in Harry Potter Series.

Spencer Reid's super-smarts helps catch killers, and his social awkwardness endears co-workers. See them in Criminal Minds.

He may forget his homework, lose his toad, and fall off brooms, but Neville Longbottom can also single-handedly destroy villains. See them in Harry Potter Series.

When it comes to Haruko Haruhara, there's more to the pink-haired biker than meets the eye. See them in FLCL.

Given his ability to wrench street signs from the ground, Shizuo Heiwajima is a useful one to have in dangerous Ikekuburo. See them in Durarara!!.

Herion is Mark Renton's favorite drug. He sniffs it, smokes it, swallows it, sticks it up his arse, and injects it into his veins. See them in Trainspotting.