Because you like Amelia Brand in Interstellar

Rory Williams is a caring companion whose specialty is looking after others. See them in Doctor Who.

Not only will Emmett Brown's time-saving gadgets help you travel with ease, his tinkering on your car will help you get wherever you need to go. Fast. See them in Back to the Future.

A compassionate medical student, Martha Jones has found a Doctor she can really look up to. See them in Doctor Who.

Kenzo Tenma would have never guessed that ten-year-old he saved would later become a deadly serial killer intent on "thanking" him. See them in Monster (TV Show).

A bloodsucker, Carlisle Cullen is actually more likely to give you a blood infusion. See them in Twilight.

Tony Stonem is the golden boy of Bristol. Problem is, he knows it. See them in Skins.

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

Formerly a "sweater-set-wearing, mojito-drinking sorority girl", Paige Collins is now a successful sculptor with slight memory loss. See them in The Vow.

Serena van der Woodsen is a wild child. Too wild, her friends and family might argue. See them in Gossip Girl.

There's nothing like discovering dear old dad is a serial killer to send you into an (understandable) funk. See them in Hannibal.

Dallas Winston is headed down a dangerous, criminal road. See them in The Outsiders.