1. Naive: Sheila is initially presented as a somewhat spoiled and sheltered young woman. She is naive about the realities of the world outside her privileged circle.
2. Contrite: As the play progresses, Sheila experiences a significant change. She becomes acutely aware of her own role in the events leading to Eva Smith's death, and displays deep remorse and guilt.
3. Evolving: Sheila is a dynamic character. She starts as a somewhat shallow and self-centered individual, but through the Inspector's investigation and her own awakening, she develops into a more compassionate and socially conscious person.