The Thief, Master Burglar 
Overview: Life is never easy for Rogues, whose trade so often flies in the face of local law and custom, and can leave them shunned by all they meet. In time, however, those who can survive long enough to gain a measure of success become Thieves, true professionals and masters of their craft.
Success brings them not only wealth but finally a kind of status. True Thieves no longer live off of the wealth they steal - they take contracts from wealthy patrons to steal, and are paid handsomely for their services.
Thieves stake their reputations (and their lives) on their ability to pass even the most attentive guards without being seen or heard, and are master climbers and locksmiths. Should these skills fail, however, a Thief makes a deadly foe in combat. They frequently learn the use of poison, and can also learn combat techniques that can quickly immobilize or cripple their foes. If pressed, they are also masters of defensive combat, using evasion and speed to escape harm.
Many Thieves are content to live in cities, plying their trade in defiance (or sometimes at the behest) of the local authorities. Merchant guilds or Noble Houses frequently hire Thieves to disrupt a rival's operations, or to humiliate them by taking their most prized possessions.
The Thieves themselves must walk a fine line to remain neutral, and master Thieves are often contracted by their most recent victim to deal revenge to a previous employer. While such a position can be very lucrative, many Thieves tire of the intricacies of local politics, and either band together in Guilds to protect their interest or leave the cities altogether to pursue a life of Quest and Adventure.
Every Thief's ability to bypass physical obstacles, move unseen, and hamper their foes in battle makes them a valuable part of any adventuring company.