The Keepers

After seeing fleeting glimpses of an alien creature that is apparently able to control portals by itself, as well as hearing a psychic describing said alien (as well as Tommy) via the aliens' monitoring of an Earth radio call-in show (Coast to Coast AM), Tommy finally comes across the alien in question, seeking vengeance for the recent death of his girlfriend. It is here the player learns that the Keeper's race seeded innumerable worlds across the galaxy with the prerequisite components for biological life so that, when the times arose, the Keeper's race could harvest that which they initially sowed so long ago. Earth was a barren and desolate rock until this process happened. Because of this, the Keepers ultimately do not care about, or even acknowledge, the rights of the beings that evolve on the seeded worlds, for they are merely protein to be harvested and used at their discretion. It is possible that the Keepers are the actual builders of The Sphere, seeing as it performs the very task they set out to initiate. The first Keeper Tommy fights is able to summon just about every lesser enemy to fight Tommy. Later Keepers are not able to do this, but they share the same characteristics with the initial Keeper; an absolutely gigantic brain, which gives them the ability of telekinesis (with which to shield themselves, as well as hurl balls of energy or physical objects, such as barrels, at Tommy), and a body structure that is unlike any of the other alien races encountered on The Sphere.