Because you like Mina Murray in Dracula

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.

A compassionate medical student, Martha Jones has found a Doctor she can really look up to. See them in Doctor Who.

Oscar Martinez is a national accountant in an office of weirdos. See them in The Office.

A bloodsucker, Carlisle Cullen is actually more likely to give you a blood infusion. See them in Twilight.

Humble, caring, and protective, Scott McCall tries to make the best of his newfound status as a werewolf. See them in Teen Wolf.

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.

R2-D2 has been in the galaxy saving business for decades. Not bad for somebody whose vocabulary is limited to "beep-boop." See them in Star Wars Series.

Sarcastic and always complaining, C3PO is a droid that despite his quirks you always want by your side. See them in Star Wars Series.

A dedicated hedonist, Jack Harkness appreciates raunchy stories, stiff drinks, and excellent bottoms. See them in Doctor Who.

Raised to happily follow the rules, Cassia might actually be more rebellious than she thinks she is. See them in Matched .

Mitchell Pritchett prefers to have a place for everything and everything in its place. See them in Modern Family.

Talking to a stranger on a train is the best decision Jesse Wallace ever made. See them in Before Sunrise.