Because you like Deandra "Dee" Reynolds in It's Always Sunny in Philadelphia
CIA operative Carrie Mathison is on a self-assigned mission to follow a lead, whether it be the truth or just her delusions playing tricks. See them in Homeland.
In charge of stocking the office's supply of cigarettes and liquor, Joan Holloway could run the whole company if they would let her. See them in Mad Men.
Blaine Anderson is a put-together prep school boy with the voice of an angel. See them in Glee.
Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.
Rupert Giles is a librarian on the outside, fearless evil-fighter on the inside. See them in Buffy the Vampire Slayer.
Marshall Eriksen is a lawyer in love who is enjoying life. See them in How I Met Your Mother.
Nick Miller might not have a bank account, but he defintely has a lot of love to give. See them in New Girl.
Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.
A grumpy tourist trap owner, Grunkle Stan has a few deep secrets. See them in Gravity Falls.
Chuck Bartowski is a sweet, laid-back electronics store/top secret government employee. See them in Chuck.
Butters Stotch is a kind-hearted student who likes ladybugs, Charlie's Angels, art class, baby-back ribs, and Little Bunny Foo Foo. See them in South Park.
Clarice Starling is patiently working with one serial killer to stop another. See them in The Silence of the Lambs.