Because you like George Michael Bluth in Arrested Development
There must be quite a lot of fellows who haven't got anybody to bring them tea in the morning. Bertie Wooster is lucky to have his valet, Jeeves. See them in Jeeves and Wooster.
Sally Albright is high maintenance who she thinks she's low maintenance. But she's still worth it. See them in When Harry Met Sally....
Daria Morgendorffer is so defensive that she actively works to make people dislike her so that she don't feel bad when they do. See them in Daria.
With an incredible ability to fake a smile, Selina Meyer is a gifted politician serving as Vice President. And maybe one day the President will actually call her. See them in Veep.
Though Twilight might be opposed to it, her new friends might just be able to teach this serious-minded pony how to relax. See them in My Little Pony.
Holden Caulfield is convinced that the whole adult world is full of phonies. See them in The Catcher in the Rye.
Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.
Christine Daae has been secretely taking lessons from a phantom musician. It sounded less creepy in her head. See them in The Phantom of the Opera.
Reckless, vulgar, loud-mouthed: that's what makes Amethyst so awesome. See them in Steven Universe.
Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.
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.