Eloy, a physician, was an Imperial researcher. He acted as one of the primary engineers of the Death Star battle stations alongside Bevel Lemelisk. Around the time of 0 BBY, he seemingly held the leadership role in the Hammertong initiative, where he worked on the battle stations' primary superlasers. He was a Doctor.
Kellering reached out to Manda D'ulin and her squad, the Mistryl Shadow Guard, seeking their assistance in moving Hammertong away from the planet. He informed them that Eloy desired their presence to bolster the Imperial security force commanded by Captain Drome. Nevertheless, considering the swiftness and intensity of the Imperial guards' assault on the Mistryl, the veracity of this statement remains uncertain.