Because you like The Master in Doctor Who

Ianto Jones' withdrawn nature conceals his emotional pain. See them in Torchwood.

Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.

Khan Noonien Singh is super strong, super smart, and out for revenge. He always seems to be two steps ahead of his enemies. See them in Star Trek Into Darkness.

There is never a dull moment with Jim Moriarty: expect booze and sing alongs in between all of the homicide. See them in Sherlock.

There's more to this sweet, caring landlady than meets the eye. See them in Sherlock.

Hoban Washburne shows you can be a hotshot space pilot *and* play with dinosaurs. See them in Firefly.

Manipulative, conniving, and ruthless, Mr. Gold is enigmatic no matter what world he's in. See them in Once Upon a Time.

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

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.

Greg Lestrade is gruff, loyal, and quietly competent. See them in Sherlock.

A cruel pirate, Captain Hook still fancies himself a gentleman. See them in Peter Pan.

Irene Adler has to use both her brains and her body to survive. Luckily, she's usually the most brilliant person in the room. See them in Sherlock.