Because you like Amy Farrah Fowler in The Big Bang Theory

Stefan Salvatore was the golden boy when he was alive. Can he keep it up as a vampire? See them in The Vampire Diaries.

Derek Morgan is thoughtful and kind, but he won't say no to knocking the occasional door down when he gets the chance. See them in Criminal Minds.

Driven yet empathetic, Emily Prentiss brings humanity to the pursuit of inhuman killers. See them in Criminal Minds.

The biggest nerd in high school, Bill Haverchuck is the biggest target for bullies. See them in Freaks and Geeks.

Nick Carraway is the perfect observer: always there for the events, but never too involved. See them in The Great Gatsby.

Stan Marsh is a fourth grader who is the ladies man of his classroom. See them in South Park.

Paris Geller is a newspaper editor, class president, and headed for Harvard. See them in Gilmore Girls.

Charlotte is ready to embrace connection in a strange place. See them in Lost in Translation.

Alex Russo desperately wants to keep her magic – after all, things are so much easier when you can just wave a wand. See them in Wizards of Waverly Place.

Ferociously independent and wickedly smart, Fiona Goode is a Supreme Witch who truly reigns supreme. See them in American Horror Story.

As Marlena Rosenbluth is finding out, confidence in the limelight doesn't always translate to power at home. See them in Water for Elephants.