Darth Maul

Darth Maul is a Sith with a double-sided Lightsaber. This means he can fight two people at once. How cool is that?

He killed Obi-Wan Kenobi's master, which made Obi-Wan mad. Obi-Wan managed to control his anger and turn it into a sword, creating a lightsaber from thin air. He then proceeded to cut the bemused Maul in half with the hatesaber, which Darth Maul would have said something about, if he could talk, which he can't.

He has a half-brother who's an orc.