Emma Swan

 Emma Swan is the main character and protagonist of Once Upon a Time. She is the daughter of Snow White and Prince Charming who was sent to the real world after the Evil Queen placed a terrible curse upon the Fairytale Land. She was a bail bondsman living in Boston until her son, Henry Mills, found her and brought her to Storybrooke to break the curse.

Background
Emma Swan was born in Fairytale Land to Snow White and Prince Charming, moments before the Evil Queen was set to unleash a curse on the land. However, the inhabitants of Fairytale Land had come up with a plan to stop the curse when it had been enacted. Gepetto was to craft an enchanted wardrobe which would transport only one to the real world, free of the curse.