General Grievous is an unforgettable character from Revenge of the Sith. He's the scary looking robot that could wield several lightsabers at the same time.

Who could forget the intense lightsaber duel between he and Obi-Wan Kenobi. The first time I saw it I was on the edge of my seat, thinking there was no hope for Obi-Wan.

Even though Grievous had the clear advantage in the fight, he was no match for the awesome Jedi Master. The force was strong with Obi-Wan when he took away Grievous's blaster, then turns it back on him, ending the fight.