Xzar

Xzar is the first Ally that you find in Baulders Gate. He wants you to journy with him and his companion Monteron to Nashakl. It turns out that he and Monteron hate each other and are only together because they work for the group the Zhentariam. If you have Xzar at the end of the game then there is a short scene at the end involving him and the Zhentariam.