Sith Inquisitor

The Sith Inquisitor - The most badass class in the game.

As you may or may not know, in this game, for every class you have two advanced classes.
Basically the name "Advanced Class" might be misleading for many of you, so to clear it up:
An advanced class is like a class within a class. Once you have selected it you can NOT change it.
Within each of these "Advanced Classes" there are 3 specs, which you can spec in whatever manner you want,
and you can also respec should you like. (There is of course a fee for re-speccing, with an increasing cost every time you reset. I have heard from some players that this fee reset´s to default every week, so fear not an immense loss of money if you feel like exploring whatever spec combinations you would like.)

For the Sith Inquisitor class, you have two advanced classes; the Sith Assassin and the Sith Sorcerer.
The Sith Assassin is a melee combatant with a small assortion of offensive ranged abilities,
and the Sith Sorcerer is the opposite. A very VERY shallow comparison would be the Sith Assassin to a Rogue, and the Sith Sorcerer to a Mage.
But the options do not end there, as the Sith Assassin is capable of taking on a Tanking role in Flashpoints(instances) or Ops(raids) as well as DPS,
and the Sith Sorcerer can (as you might have figured) Heal, in addition to having two DPS specs..
As for the talent specializations, and unlike WoW, you have no limitations. You can put the points wherever you want,
be it a 31/5/5 spec or a 11/11/19. The choice is yours.

The companion list, when you get them, and their roles is as follows:
1.Khem Val (Level 9/10, at the end of Korriban) (Tank)
2. 2V-R8 (Level 15/16, at the end of Droman Kaas) (Tbh only useful for sending on crew assignments)
3. Andronikos Revel (Around and up to level 26, at the beginning of Tatooine) (Ranged DPS)
4. Ashara Zavros (Around and up to level 35, at the end of Taris and if I recall correctly Act 1) (Melee DPS)
5. Talos Drellik (Around and up to 41, at the end of Hoth) (Healer)
6. Xalek (Around and up to level 47, at the end of Voss) (Ranged Tank)

I guess that's that, happy leveling!

Wondering about which crew skills to pick? Here's a list of the crew skill bonuses Sith Inquisitor's companies have.
(Note: "eff" stands for efficiency, "crit" for critical chance. Efficiency is a direct percentage that is reduced from each task's duration.)

Khem Val: +15 Artifice eff, +5 Investigation eff
Andronikos Revel: +2 Slicing crit, +2 Underworld Trading crit
Ashara Zavros: +10 Diplomacy eff, +10 Synthweaving eff
Talos Drellik: +5 Archaeology crit, +5 Treasure Hunting eff
Xalek: +2 Scavenging crit, +10 Bioanalysis eff

No bonus to: Biochem, Cybertech, Armormech, Armstech

Other classes:
Bounty Hunter
Imperial Agent
Sith Warrior

Taken from SWTOR official website www.swtor.com

SINISTER, DECEPTIVE, PRODIGY OF FORCE POWER

The history of the Sith Empire is fraught with scheming politics and dark secrets—the lifeblood of the Sith Inquisitor. Treachery hides around every corner in the Empire’s dark corridors, and survival depends on an individual’s natural cunning and the will to manipulate and defeat their enemies and allies alike. The Inquisitor experiments with forbidden powers to not only survive in this cutthroat environment, but to excel and seize authority.

Regardless of potential, few acolytes succeed in facing the rigorous trials to become Sith Inquisitors. Only the most determined acolytes attain such an achievement, but these Sith are often the ones to watch. Due to their manipulative genius, Inquisitors are skilled at exploiting both their enemies and their allies to further their own personal agendas. Channeling this Force energy, Inquisitors are capable of draining the life from their enemies and using it to feed themselves and their allies.

Though their skills are varied and many, Sith Inquisitors are most feared for their ability to channel the energy of the Force, making them a spectacle to behold on the battlefield. Seething sparks of lightning explode from the Inquisitors’ fingertips and wrap their enemies in tendrils of pure Force energy. Because Inquisitors can twist the Force into lightning to stun, subdue, or destroy their foes, it has become their signature. Those who have experienced the sensation of the Inquisitor’s Force Lightning and survived forever recoil from the crackling sound of electricity.

MASTERING THE DARK SIDE

To reach the highest echelons of power, the Inquisitor needs more than Force Lightning and a razor-sharp mind. The most formidable Inquisitors dare to explore unorthodox practices by investigating the enigmas of the past and by unlocking new powers for themselves. The Force is a source of unlimited potential—a wellspring Inquisitors tap and bend to their will. Such intensity allows Sith Inquisitors to become architects of the Empire’s future… or simply the architects of their own destruction.