Because you like Arizona Robbins in Grey's Anatomy

You wouldn't know it by looking at her, but beneath Sheila Jackson's sweet, motherly exterior lies a sex addict. See them in Shameless.

Dolores Umbridge keeps her villainy hidden (albeit poorly) behind a sheen of sugary pink politeness. See them in Harry Potter Series.

Beautiful and artistic, Aria Montgomery follows her own path. See them in Pretty Little Liars.

Drusilla's hobbies include dolls, music, and killing people. See them in Buffy the Vampire Slayer.

Lloyd Dobler is a kickboxer wearing his heart on his sleeve who would do anything for the woman he loves. See them in Say Anything.

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

Sookie Stackhouse is a waitress who can read minds and break hearts. See them in True Blood.

Sabrina Spellman is half-witch-half-human, a headstrong and loyal cheerleader with an affinity for spell-making. See them in Chilling Adventures of Sabrina.

With a dangerous medical condition, Ignoring the rules makes him feel like he’s in control. See them in Five Feet Apart.

Bo Dennis once dreamed of being prom queen, but then she found out that she's part of some ageless secret race that feeds on humans. See them in Lost Girl.

There can be no doubt that Ben Linus is a huge liar. But one man's lies are another man's necessary steps to protect his people. See them in Lost.

Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.