Because you like Zenitsu Agatsuma in Demon Slayer

Courteous, dangerous, and powerful, Kaname Kuran controls an entire court of vampires. Very, very pretty vampires. See them in Vampire Knight.

A grumpy tourist trap owner, Grunkle Stan has a few deep secrets. See them in Gravity Falls.

Dimitri Belikov is a stoic vampire guardian who has the reserve, focus, and discipline of a soldier. See them in Vampire Academy .

This is not a democracy. According to Torrance Shipman, it's a "cheerocracy." See them in Bring It On.

Django was once a slave. Now that he has a taste of freedom, he understandably wants a full meal. See them in Django Unchained.

Causing mayhem practically since birth, rambunctious Fred Weasley plays pranks on his siblings and avoids school at all costs. See them in Harry Potter Series.

Dustin Henderson doesn't let the bullies get to him. He's secure in who he is and that his friends have his back. See them in Stranger Things.

Betty Cooper seems like a sweet girl, but she also has a dark side and can go beyond what's safe or sane. See them in Archie Comics.

Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.

While Cassie Ainsworth's head is always in the clouds, her heart is always in the right place. See them in Skins.

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.