Because you like Danny Zuko in Grease

Faith has a chip on her shoulder and a stake in her hand to slay vampires in her town. See them in Buffy the Vampire Slayer.

Waylon Smithers would do anything for his boss, and would love to do a few things *to* him. See them in The Simpsons.

Franklin "Mouse" Finbar is a jock paying the price for his mistake. See them in Jumanji.

Growing up is hard for Carl Grimes. Growing up in a zombie apocalypse is even harder. See them in The Walking Dead.

Moe Szyslak is the crabby owner of the grimiest bar in Springfield. See them in The Simpsons.

Linda Belcher doesn't prescribe to what society deems as "normal." She narrates her life through song, much to the alarm of everyone nearby. See them in Bob's Burgers.

Frank Reynolds is too gross even for the prostitutes he hires. See them in It's Always Sunny in Philadelphia .

Oscar Martinez is a national accountant in an office of weirdos. See them in The Office.

Wheatley's got an endless supply of bad ideas that he wants to share. See them in Portal Series.

Kenny McCormick is a boy of few words who likes nudie mags, NASCAR, monster trucks, origami, and Peruvian pan flute bands. See them in South Park.

Don't ask the ruthless queen of the Tokyo underworld any questions unless you're fine with losing a limb. See them in Kill Bill vol. 1.

Burton Guster is a level-headed investigator with a "Super Sniffer" nose. See them in Psych.