This is Darth Maul.He is the apprentice of Darth Sidious He is a Sith,they have been hidden for a thousand years. A thousand years ago they killed each other,one survived,Darth Bane. He got an apprentice and said there will only be an apprentice and a master. The master would die,the apprentice would become the master and find an apprentice. They kept hidden until Episode 1. Darth Maul is pure evil,horns on his head,evil eyes,bad teeth and a double bladed lightsaber. He is a fully trained Jedi Knight of the dark side. I wouldn't mess with him.