BioWare revealed the sixth class for Star Wars: The Old Republic today, but only on their forums. The classes page still has no sign of the Imperial Agent, but that is bound to change next week.

There is already a lot of talk about the Imperial Agent on the SWTOR forum, and you can follow it here. Here's the Imperial Agent description.

"The Imperial Agent is heavily inspired by several classic Star Wars characters such as Zam Wessel and Grand Moff Tarkin. Imperial Agents work behind the scenes to get the work of the Empire done. Specializing in high-tech gear, the Imperial Agent always has the right tools at the right time. They use abilities of subversion and subterfuge to infiltrate and assassinate enemies of the Sith Empire with deadly efficiency. Players who choose to be Imperial Agents in The Old Republic (TOR) will see the underbelly of the Empire in a whole new light."