Because you like Lisa Cuddy in House M.D.

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.

As a doctor-in-training, John Dorian should have his head in the game. But most of the time, it's in the clouds. See them in Scrubs.

Olive Hoover is an irrepressible child beauty queen (or would-be queen) who doesn't play by your rules. See them in Little Miss Sunshine.

This power-hungry Time Lord calls himself the "master of all." Bonus: he has 13 lives. See them in Doctor Who.

People make more sense to the hyper-logical Temperance Brennan after they're dead. See them in Bones.

Jessica Davis is the girl that guys like to like. See them in Thirteen Reasons Why .

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

Michael Kelso gets by on his good looks and his openhearted nature. See them in That '70s Show.

Strong-willed Norah Silverberg isn't willing to be the goody bag at anyone's pity party. See them in Nick and Norah's Infinite Playlist.

Although life in a post-apocalyptic world is far from easy, Julie Grigio maintains her sense of humor. See them in Warm Bodies.

Protecting his family's name and its power are more important to Tywin Lannister than anything or anyone. See them in Game of Thrones.