Petyr Baelish, also known as Littlefinger, is a fictional character from the A Song of Ice and Fire series by George R.R. Martin and its television adaptation, Game of Thrones. He is a cunning and ambitious man who rises from humble beginnings as a minor lord to become a powerful player in the political landscape of the Seven Kingdoms. Baelish is known for his manipulative nature and strategic thinking, often using others to achieve his goals. He has a complicated relationship with several key characters, including Catelyn Stark and Sansa Stark, and is driven by a desire for power and influence.