Another fine idea is one of the Jango Fett clones; toward the end of the Clone Wars, Palpatine started mass cloning that wasn't remotely as good as the Kamino products from Jango Fett DNA, and the quality suffered. But a Jango Fett clone, even with accelerated aging, is still a tough, dangerous opponent. Of course, the Empire is also running experiments on these guys, such as the Dark Trooper project, so it might be interesting to see how someone might bring that into play.

That, of course, would make for a very interesting officer or replacement NCO. Just a thought, because the first run of Fett clones were very elite troops.