Because you like Deandra "Dee" Reynolds in It's Always Sunny in Philadelphia
Guillermo is the best servant a vampire could ask for. For years now. Not that he's counting. See them in What We Do In The Shadows.
Louise Belcher might be just a kid, but she can manipulate just about anyone with a pulse. All in the name of fun, of course. See them in Bob's Burgers.
Maurice Moss is a dedicated IT guy who even talks like a computer. See them in The IT Crowd.
Ted Logan wants to party on, but if doesn't get an A+ on his history presentation, he'll flunk out and be sent to a military school in Alaska. See them in Bill & Ted's Excellent Adventure.
Xander Harris' life motto: laugh in the face of danger and then hide until it goes away. See them in Buffy the Vampire Slayer.
Charlie is a Type A theater director dealing with something out of his control: a painful divorce. See them in Marriage Story.
With each reboot, Janet progresses more and becomes capable of human emotions. See them in The Good Place.
Olive Hoover is an irrepressible child beauty queen (or would-be queen) who doesn't play by your rules. See them in Little Miss Sunshine.
Drusilla's hobbies include dolls, music, and killing people. See them in Buffy the Vampire Slayer.
Michael Bluth is the only sane person in a family of eccentrics. At least, that's how he thinks of himself. See them in Arrested Development.
Gene Belcher dreams of a future in the limelight, and he doesn't let his lack of talent hold him back. See them in Bob's Burgers.
