Because you like Izzie Stevens in Grey's Anatomy

Self-described as half-Slytherin, half-Ravenclaw, Molly Davidson has a big, demanding personality that doesn’t always leave space for other people’s emotions. See them in Booksmart.

Connor Walsh is arrogant enough to think he's the smartest guy in the room, and quick-witted enough to prove that he is. See them in How to Get Away with Murder.

Angela Martin is uptight and puritanical, outside of the affair she's having with a co-worker. See them in The Office.

Anastasia Steele's new boyfriend Christian might as well come with a warning label that reads "Beware: Severe Issues That Might Warrant a Trip to Dr. Phil." See them in Fifty Shades of Grey.

The brilliant Mona Vanderwaal is proof that undergoing an "extreme makeover" isn't always a good thing. See them in Pretty Little Liars.

It's impossible to say whether Winifred Burkle is cuter than she is smart, or vice versa. See them in Angel.

A star student destined for Princeton, nerdy Devi Vishwakumar dreams of losing her virginity to a stone-cold hottie who can "rock her all night long." See them in Never Have I Ever.

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.

Warm and caring, Kitty Forman acts like a mom towards all of her kids' friends. See them in That '70s Show.

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.

Lane Kim is the drummer for Hep Alien, but don't let her mom know. See them in Gilmore Girls.

Topanga Lawrence has been a put-together intellectual since basically the moment she could talk. See them in Boy Meets World.