Stacey McGill is a fictional character from the popular book series The Baby-Sitters Club, created by Ann M. Martin. She is introduced as a new member of the club and is known for her intelligence, fashion sense, and love for New York City. Stacey is also a diabetic, which adds depth to her character and highlights her ability to manage her condition while being a responsible babysitter. In the series, Stacey often serves as the voice of reason among her friends. She has a close friendship with Kristy Thomas, Mary Anne Spier, and Claudia Kishi, and her experiences reflect the challenges and joys of adolescence. Stacey's character resonates with readers, making her a beloved part of the series.