Because you like Willow Rosenberg in Buffy the Vampire Slayer

Although Mako Mori may be small and quiet, she is a core of battle-hardened steel. See them in Pacific Rim.

Emma Frost's superpower: transforming her body into an unbreakable diamond. See them in X-Men Series.

Part of an elite team of investigators, Abby Sciuto is the happiest Goth to ever work in law enforcement. See them in NCIS.

Satine cynically gives up on love so she can advance her singing career. But she meets a dreamer who reminds her there's more to life than ambition. See them in Moulin Rouge.

Just because Dracula wants to suck your blood doesn't mean he's not a gentleman. See them in Dracula.

Rose Hathaway is a reckless, rebellious smartass who's training to be a royal vampire guardian. See them in Vampire Academy.

As the White House Press Secretary, C. J. Cregg is a master of verbal karate and the best damn basketball player in Ohio Valley history. See them in The West Wing.

Lyra Belacqua is prone to getting in trouble, but she's also clever enough to get out of it. Most of the time. See them in The Golden Compass.

A literal fallen star, Yvaine is temperamental, sarcastic, and a bit on edge. See them in Stardust.

Sarah Ashburn lives life by the book and has trouble getting along with anyone who doesn't do the same. See them in The Heat.

James T. Kirk is more than ready to face the final frontier. See them in Star Trek.