Sandy Olsson is a fictional character from the popular musical and film Grease. She is portrayed as a sweet and innocent girl who falls in love with Danny Zuko, a charming but rebellious teen. Sandy's character represents the struggles of young love and the challenges of fitting in, especially when she moves from Australia to a new school in America. Throughout the story, Sandy undergoes a transformation, showcasing her growth and desire to fit in with the Pink Ladies, a group of popular girls. Her journey highlights themes of identity and acceptance, making her a relatable character for many who have experienced similar challenges in their own lives.