Star Wars: The Old Republic's Sith Warrior detailed

There really isn't much we don't already know about the Sith Warrior, right? He's filled with pure evil and the second his master isn't looking, he'll probably plant a Lightsaber in his back. But the above video for Star Wars: The Old Republic's Sith Warrior -- which was revealed to have two advanced classes, the Marauder and the Juggernaut -- offers a fairly less seething individual who apparently has a knack for the spoken word.

His calm and smooth tone shows us that it's not just a Darth Maul thing. Is that a result of like a weekend class at the Corruscant Community College or just a byproduct of giving into your hatred?