Star Wars: The Old Republic writer Rebecca Harwick has penned a new developer blog that delves further into the Sith Inquisitor archetype and the differences between it and the Sith Warrior class.
...BioWare and LucasArts have always been about story, so it's not just the Lightsabers and the Force powers that differentiate the two Sith classes. With two Sith classes, we have the opportunity to explore the Sith order from two very different perspectives, to develop a more complete picture of the Sith Empire at the time our game is set, and to present strikingly different character arcs and choices. Two new screenshots are included, as well.
Whereas the Sith Warrior class is all about the martial side of the Sith, the Inquisitor is about the darkest of dark side secrets; everything that's weird and unsettling and dangerous about the Force. The Inquisitor is about power not (solely) through brute force and intimidation, but through manipulation, corruption, and knowledge.
And where that other Sith class starts in a position of privilege, born to lead and prepared from childhood for training at the Academy on Korriban, the Sith Inquisitor begins the game as a slave, plucked from obscurity and toil in a highly stratified, unforgiving Empire because of his Force-sensitivity and sent to become a Sith or die.