>The Stranger is unknown. Since the ghost scanned the gun she offered us it picked up traces of the gun facing many difficult enemies and also that some parts of it shouldn't exist. >Xur, also unknown. He's a black marketer of the nine. >The Nine have been hidden since the Collapse. No one has seen any sign of them except Xur, the black marketer. The Nine supposedly have their eyes on the queen, as the queen says that she is paranoid that they are out to get her. Source: Grimoire cards and weapon analysis (press triangle on The Stranger's Rifle).