The title for this episode was originally “The Secret of Prisoner X-10.” It was changed to “Legacy” in September 2015.

Ryder Azadi’s placeholder name during development was Vol Freilus. He is voiced by Clancy Brown, who played Savage Oppress in Star Wars: The Clone Wars.

Ezra’s vision shows Capital City in an idealized state, prior to its “modernization” by the Empire.

The Star Destroyer Relentless features more detailed tractor beam projectors in this episode to match what is seen underneath the Devastator in the opening sequence of A New Hope.