Because you like Patrick Star in SpongeBob SquarePants

Years of brutal winters, foreign invasions, and crippling loneliness have left Russia's mental state far from wholly intact. See them in Axis Powers Hetalia.

Vash might act like a carefree, peace-loving goof, but it's not wise to underestimate this "Humanoid Typhoon." See them in Trigun.

Simon Belmont is a vampire hunter bravely carrying on the family business. See them in Castlevania.

Nemo is a small fish in a vast ocean, but he dreams of seeing it all. See them in Finding Nemo.

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

World domination and Superman's demise are next on Lex Luthor's to-do list. See them in DC Extended Universe.

Some say to survive in Underland you need to be as mad as a hatter–which, luckily, he is. See them in Alice in Wonderland.

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

James Wilson is a compassionate doctor who willingly plays the sidekick. See them in House M.D..

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

Tina Belcher is on the cusp of puberty, and she has no shame when it comes to boys, butts, and brassieres. See them in Bob's Burgers.

On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.