Because you like Norman Bates in Bates Motel
Artemis Fowl understands the way of the world. If he wins, he's a prodigy. If he loses, then he's crazy. That is how history is written. See them in Artemis Fowl.
A literal fallen star, Yvaine is temperamental, sarcastic, and a bit on edge. See them in Stardust.
Stranded on Mars, Mark Watney is armed with quick wits, an electronic diary, disco music, and an undying resolve to make it back. See them in The Martian.
Usually the life of the party, Laszlo is now seriously planning the vampiric takeover of the New World. Or at least Staten Island. See them in What We Do In The Shadows.
Chandler Bings keeps his friends on their toes with his cutting wit, all the while trying to discover his own place in life. Could he BE any funnier? See them in Friends.
If you hang out with Bender in cool dive bars in 31st century New York, make sure you're on his "Do Not Kill" list. See them in Futurama.
Pepper Potts can run a company, manage an egomaniac, and take down bad guys, all without breaking a sweat. See them in Marvel Cinematic Universe.
L is enigmatic, child-like, and one of the smartest people in the world. See them in Death Note.
Francis Freeman may be impervious to pain, but he sure knows how to inflict it. See them in Deadpool.
Despite this being Robin Buckley's first rodeo with the strange things that go down in Hawkins, she is quick to adapt and proves herself to be a loyal friend. See them in Stranger Things.
A crabby troll, Karkat Vantas is perpetually angry about his lot in life. See them in Homestuck.
When the Sorting Hat touched Draco Malfoy's head, it placed him in Slytherin, a house that has turned out more dark wizards than any other. See them in Harry Potter Series.