Because you like Kimmy Schmidt in Unbreakable Kimmy Schmidt
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.
Sabrina Spellman is half-witch-half-human, a headstrong and loyal cheerleader with an affinity for spell-making. See them in Chilling Adventures of Sabrina.
Knuckles the Echidna is a 16-year-old red echidna (aka a spiny anteater) and guardian of the ancient Master Emerald. See them in Sonic the Hedgehog.
Chanel Oberlin is a big fan of herself, and she can't see why anyone else wouldn't be too. See them in Scream Queens.
A life spent as "Number Two" is bound to give Diego Hargreeves an inferiority complex. See them in The Umbrella Academy.
Being beautiful and rich doesn't guarantee happiness for Cheryl Blossom. See them in Riverdale.
Insightful about everyone else's neuroses, Rose Lalonde is not as aware of her own. See them in Homestuck.
A malevolent dark wizard, Voldemort is so fearsome that he's known primarily as "He Who Must Not Be Named." See them in Harry Potter Series.
Lelouch vi Britannia is a high school student by day, masked destroyer of tyrannical empires by night. See them in Code Geass.
Don't underestimate Maggie Greene. She's a farm girl with a mission. See them in The Walking Dead.
With an abundant supply of alcohol, nice restaurants, and free will, Crowley is a demon who is thoroughly enjoying his time on Earth. See them in Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch.
Adrian Agreste is a charming rich teenage boy, model, and hero in a catsuit. See them in Miraculous: Tales of Ladybug & Cat Noir.