Because you like Lyra Belacqua in The Golden Compass

Stranded on Mars, Mark Watney is armed with quick wits, an electronic diary, disco music, and an undying resolve to make it back. See them in The Martian.

Jean-Baptiste Grenouille may have a phenomenal sense of smell, but he has a weak sense of morality. See them in Perfume: The Story of a Murderer.

A smart, spunky, and incredibly skilled gamer, Art3mis has a revolutionary spirit. See them in Ready Player One.

While Fantine's gentleness has led others to take advantage of her, it ultimately forces her to become stronger. See them in Les Miserables.

Angel is fighting as best as he can, but the disease might be too powerful for even his strong, positive energy. See them in Rent.

With an incredible ability to fake a smile, Selina Meyer is a gifted politician serving as Vice President. And maybe one day the President will actually call her. See them in Veep.

Sookie Stackhouse is a waitress who can read minds and break hearts. See them in True Blood.

Gollum is slimy and seething with hatred, the last person you would want to meet in a dark cave. See them in The Lord of the Rings.

Quentin has his whole life mapped out. It might sound boring, but he likes boring. See them in Paper Towns.

Emma Woodhouse knows what's best for everyone else. Just don't try to tell her what to do. See them in Emma.