Mrs. Coulter is a prominent character in Philip Pullman's His Dark Materials series. She is known for her intelligence, charm, and manipulative nature. As a high-ranking official in the Magisterium, she plays a significant role in the story's conflict, often opposing the protagonists. Her relationship with her daemon, Pantalaimon, reflects her complex personality. Mrs. Coulter is both a mother figure and an antagonist, showcasing her duality throughout the series. Her actions and motivations drive much of the plot, making her a compelling and enigmatic character.