Because you like Prussia in Axis Powers Hetalia

Brilliant, violent, and only a little insane, the Joker doesn't listen to anyone except the voices in his head. See them in DC Extended Universe.

Frank N. Furter is just a sweet transvestite with some not-so-sweet plans. See them in The Rocky Horror Picture Show.

Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.

Lyra Belacqua is prone to getting in trouble, but she's also clever enough to get out of it. Most of the time. See them in The Golden Compass.

Angel is fighting as best as he can, but the disease might be too powerful for even his strong, positive energy. See them in Rent.

If Eleanor Shellstrop's true identity is revealed, she'll be sent to The Bad Place. See them in The Good Place.

As a doctor-in-training, John Dorian should have his head in the game. But most of the time, it's in the clouds. See them in Scrubs.

Whether it's getting a deal or finishing a homework assignment, Jessica Huang demands nothing less than the best from those around her. See them in Fresh off the Boat.

This mathematical genius doesn't have time for small talk; Alan Turing needs to break Enigma, the Nazi's cipher machine. See them in The Imitation Game.

Introverted Kira Yukimura is sweet, bubbly, and eager to make friends. See them in Teen Wolf.

Part archaeologist, part philosopher, part politician, Jean-Luc Picard is an unashamed intellectual who runs a tight ship. See them in Star Trek: The Next Generation.

Gordie Lachance never had any friends later on like the ones he had when I was twelve. See them in Stand By Me.