[Another shrug, though this time it's because the answer isn't quite as simple as a single name. Ezra scratches the back of his neck.]

You can say they fell to the Dark Side. The worst ones are the Sith, but there's only two of those. Everyone else... Dark Side users, I guess?

[Ezra's experience has always been pretty narrow, only dealing with the Inquisitors, and Vader that one time, but the Inquisitors are something pretty specific to the Empire. If there are Dark Side users outside of the Empire, he's not sure what they might be called.]