Challenge
I tried to find a good Overlord and Star Wars crossover story, but I could not find good one.
Therefore, I wanted to offer interesting authors to write this story (crossover).
It seems to me that the Overlord has the potential for star wars universe, because he is evil (dark forces) symbol/master, but still can do good deeds to receive proper awards (reputation or slaves).
In my opinion Overlord can be a dark-light, dark-dark. But not dark/crazy as Sif.