The TIE Fighter pilots are wearing gray flight suits rather than the black ones they wear in the original trilogy. This is consistent with their look in Star Wars: Rebels (2014), which takes place at the same time as this series.
The orange squares in Colonel Pettigar's rank badge denote his engineering background.
As the rebels travel to the Aldhani base to rob it, they use 'Echo' as part of their code. The Rebels will later use the term 'Echo' as the name of their base on Hoth in The Empire Strikes Back.
Dr. Quadpaw's Quonset-like hut on the planet Fresno was photographed in the hamlet of Beedon Common in the English county of Berkshire.