The planet Raxus was the capital world of the Confederacy of Independent Systems and home of the Separatist senate during the Clone Wars, and was first seen in Heroes on Both Sides (2010). The name refers to the earlier location 'Raxus Prime', which first appeared in Dark Horse Comics' "Boba Fett: The Fight to Survive" and went on to be featured in several LucasArts video games.
Senator Avi Singh is voiced by Alexander Siddig, more famous for playing Dr. Julian Bashir in the rival Star Trek franchise. Siddig is one of only a few actors to have had a starring role in Star Trek and also appeared in a Star Wars project.
Shelby Young, who voices Captain Bragg, previously voiced Princess Leia in Star Wars: Forces of Destiny (2017).
The Aurebesh word that pops up on Tech's device just before he says "Repairs complete" translates to 'complete'.
When GS-8 uses a control panel to open a door, the red screen above it reads "locked" in Aurebesh, then turns into a green screen that reads "unlocked". A moment later, Tech does the same action.