When we first meet Juliet Burke, she is an absolute enigma. Who is she, really? What does she want? More importantly, whose side is she really on? As it turns out, knowing where her loyalties lie is moot, since Juliet herself doesn’t always know which side she’s on. She shifts allegiances depending on what works best for her at any given time. However, once she does decide to have someone’s back, you have her loyalty forever, no matter what.