Mary Jane Watson is Peter Parkers love interest and is a friend to him. She is also an actress, singer, she has passion for the stage. Mary Jane is an important part of the Spiderman story and her presence adds depth and heart to the movies. She also had cheated on almost all of her boyfriends and but at the and kind of made things work with Peter. Mary Jane Watson is the daughter of Philip and Madeline Watson, but her dad isn't a very good father and husband to her and her mother.