Because you like Bernadette Rostenkowski in The Big Bang Theory

Shawn Hunter may be a bit of a rebellious bad boy, but he has a heart that's pure gold. See them in Boy Meets World.

Don't tell anyone Kate Austen was under arrest when the plane crashed. See them in Lost.

Leslie Burke is bold, courageous, and imaginative enough to create a world from scratch. See them in Bridge to Terabithia.

April Kepner is an excellent surgeon, but outside of the operating room, she's more anxious than most. See them in Grey's Anatomy.

David Nolan is a noble fairy tale prince with the heart of a hero, regardless of whether he can remember his past or not. See them in Once Upon a Time.

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.

Mike Hannigan is a lawyer-turned-pianist who loves to tap into his kooky side. See them in Friends.

Claire Standish is a popular, perfect princess who's deeper than she seems. See them in The Breakfast Club.

Kim Kelly is a high school bully who's normally in a bad mood. But there's a softer side to her. See them in Freaks and Geeks.

Leonardo is spiritual, and devoted to more than just pizza. See them in Teenage Mutant Ninja Turtles.

Bookish and socially anxious, Ruby Roundhouse is a teenager turned action heroine. See them in Jumanji.