Admiral Razorbeard. Despite his short stature, he has carved a massive hole in the cosmos, successfully raiding 100 worlds, enslaving their populations before reducing their home worlds to nothing but space dust.
He comfortably hosts 22,730 slaves from these worlds on board his personal ship, the buccaneer. They are eyed carefully by his vast army of robots, since he trusts nothing with a heartbeat.
With unmatched ferocity and quick and precise use of brutality, he makes any force a challenge to stand up to his wrath.