For a prequel to Rogue One, the second season of Andor has been weirdly light on cameos or Easter eggs. However, the final three episodes of Andor Season 2 are designed to lead right into the events of the film, which makes certain references to the future unavoidable. Imperial scientist Galen Erso (Mads Mikkelson) was essentially forced to start building the Death Star 17 years before Andor and Rogue One. That’s the gem that once powered Jedi lightsabers; now, the Empire is using it as fuel for the Death Star. Andor Season 2 is currently streaming on Disney+.