Nebula – Karen Gillan

Another daughter of Thanos, Nebula isn’t easy to get along with, and she maintains a ferocious rivalry with her sister Gamora. She may be equally as dangerous, but she’s decidedly less stable, making her unpredictable and, frankly, hard to trust. She barely survived the battle at Xandar, and now she’s teamed up with her former enemies. But as director James Gunn said in an interview, “you never know what’s up with that one.”