Melisandre is a fictional character from the book series A Song of Ice and Fire by George R.R. Martin and the television adaptation Game of Thrones. She is a priestess of the Lord of Light, known for her red robes and mysterious powers, including the ability to see visions in the flames. Melisandre serves Stannis Baratheon, believing him to be the prophesied hero who will save the realm. Throughout the series, Melisandre's actions are driven by her faith and her belief in destiny. She plays a significant role in various events, including the resurrection of Jon Snow and the battle against the White Walkers. Her character raises questions about faith, power, and the consequences of manipulation.