Because you like Hal 9000 in 2001: A Space Odyssey
Hayley Stark is a sarcastic 14-year-old with an unusual passion. See them in Hard Candy.
Told her son will one day save the world, Sarah Connor dedicates her life to training him to do just that. See them in The Terminator.
Konata Izumi has a live-now, worry-later view of the world. See them in Lucky Star.
Although she's only six, Hushpuppy is a tough girl ready to stand up to terrifying, pre-historic beasts after the storm. See them in Beasts of the Southern Wild.
A self-proclaimed diva, Mercedes Jones is on the hunt for a stage worthy of her talents. See them in Glee.
Dante Alighieri is a crusader fighting his way to absolution. See them in Dante's Inferno.
Whether it's a companion he’s failed or lingering guilt from the war, the Doctor can never truly let go of his past lives. See them in Doctor Who.
Wei Shen is an undercover cop on a mission for justice (or at least vengeance). See them in Sleeping Dogs.
The crown prince of the Fire Nation, Zuko has been ordered by his father to find the long-lost Avatar before he is allowed to return home. See them in Avatar: The Last Airbender.
Don't ask Rosa Diaz, a Brooklyn detective, to lighten up. Actually, to be safe, don't ask her to do anything! See them in Brooklyn Nine-Nine.