5. Kreia (KOTOR II)
Kreia was one of the first party members you find in the first mission located in Pergaus Mining Facility. She offered wisdom and often lectured you at times about your love interest. Regardless, she became a mentor figure to my character and I always listened to whatever she had to say.
I was heartbroken when I found out that she was really Darth Traya, a member of the Sith. However, you do get some closure in the end before the game's brief conclusion.
