Bio: An alien race of highly interconnected individuals, joined together through what appears to be some sort of telepathic contact.
They appear to have embraced the name "The Gaijin" on Earth because they chose to appear in 17th Century Japan. They probably have another name by which they refer to themselves in their own language.
One of their key traits is the use of "nano-drones". These microscopic entities can assemble virtually anything. But they also have the ability to heal faults in living organisms—eerily similar to the "nano-genes" presented in the 2005 series' episodes "The Empty Child/The Doctor Dances".