Muriel Stacy is the first female teacher at the Avonlea school in the anime Anne Shirley. She arrives after the departure of the previous teacher and quickly becomes a significant figure in the community. Her background is that of an educated young woman who brings a fresh approach to education, one that emphasizes both intellectual and physical development. She is described as always dignified in her behavior, which makes her a model for Anne Shirley. Her personality is warm, sympathetic, and energetic, and she possesses a genuine affection for her students. She often eats lunch with them and engages with them outside of formal lessons. Her motivations are rooted in a desire to provide a meaningful and holistic education, encouraging her pupils to think critically and explore the world around them.

In the story, Muriel Stacy plays a pivotal role as Anne’s mentor and kindred spirit. She recognizes Anne’s rare potential and takes deliberate steps to nurture it, helping Anne grow in confidence and academic ambition. Her teaching methods are innovative for the time: she incorporates outdoor activities, such as athletics, into the curriculum, which causes unease among some of the more conservative villagers but earns her great popularity with the children. This progressive style also influences Anne’s own aspirations, inspiring her to pursue higher education and eventually become a teacher herself.

Muriel Stacy’s key relationships include her bond with Anne, whom she treats as a special student and a kindred spirit, and her interactions with other Avonlea residents, some of whom are skeptical of her unorthodox methods. She remains respected and admired by her students throughout her tenure. Her development within the story is subtle but meaningful: she serves as a catalyst for Anne’s intellectual and personal growth, and her own confidence as an educator is reinforced by the positive outcomes she sees in her pupils. Notable abilities include her skill in identifying and fostering talent, her capacity to create an engaging and supportive classroom environment, and her ability to maintain her dignity while challenging traditional educational norms. Her legacy in Anne’s life is lasting, as she helps lay the foundation for Anne’s future successes.