Because you like Donna Noble in Doctor Who

Effortlessly sexy, calm, and collected, Eric Northman is equally at home ripping off heads and flirting with waitresses. See them in True Blood.

Clementine is a beacon of innocence in a dangerous, deadly world. See them in The Walking Dead (Video Game).

The brilliant and well-adjusted Ender Wiggin is being groomed for the next generation of military leaders to fight alien invaders. See them in Ender's Game.

While he might be too cool for school, Soul isn't too cool to do the right thing. See them in Soul Eater.

With the loyalty and pluckiness of a puppy, Nana Komatsu is a hopeless romantic. See them in Nana.

Tiffany Maxwell wishes people would stop reminding her about her dead husband. See them in Silver Linings Playbook.

Francis Freeman may be impervious to pain, but he sure knows how to inflict it. See them in Deadpool.

Veronica Lodge is a sophisticated girl who always, no matter what, absolutely gets what she wants. See them in Archie Comics.

Norma Bates may look like a harmless housewife, but don't let that fool you. See them in Bates Motel.

If you need her, Lisa Simpson will be in her room with her saxophone and a good book. See them in The Simpsons.

Fun and feisty on the outside, Meredith Grey is dark and twisty on the inside. See them in Grey's Anatomy.

Cassie Sullivan is resilient and resourceful, but she's not quite as brave as she pretends to be. See them in The 5th Wave.