G-5

"G5" is an unseen and minor character in Metroid Prime 3: Corruption. As Samus is ascending Aurora Access to speak with Aurora Unit 242 on the G.F.S. Olympus, he announces over the intercom that she is coming up. A Federation Marine stationed at the top of the lift says "Clearance confirmed, G5. Opening chamber vault." He then interacts with a terminal, opening the door to the Aurora Chamber. G5 is not heard from again for the remainder of the game. It is likely that "G5" is this person's codename, in which case their real name is unknown.

This character is not known to be seen in-game. However, it is possible that he is the Federation Marine stationed outside the door to the Aurora Lift, who speaks to Samus before she enters.