Written as a supplement to Strangers Among Us: The Aliens Who Built the Galactic Empire, Part 1 focused on the characters Mammon Hoole, Borborygmus Gog, Cartariun and Ampotem Za, while Part 2 featured Hethrir, Stafuv Rahz, Kharys and Bentilais san Sk'ar.
Originally a third installment was mooted, which would have featured the Most High Proctor of Thebeon 8 and Senator Mzerc from Princess Leia, Imperial Servant; however, this installment was aborted.
- Aliens in the Empire, Part 1 on Hyperspace
- Aliens in the Empire, Part 2 on Hyperspace
- Aliens in the Empire, Part 1 on Star Wars Upcoming Books & Comics (images captured from the original article), the official Facebook page of Once Upon a Galaxy
- Aliens in the Empire, Part 2 on Star Wars Upcoming Books & Comics (images captured from the original article), the official Facebook page of Once Upon a Galaxy
- Star Wars Legends on StarWarsTimeline.com (archived copy of