Marie is a 4 year child orphaned by the hands of Gargoyle and the Neo-Atlanteans, who killed her parents. She is soon found by Nadia and Jean, who decide to keep her and to take good care of her.
Marie was born on April 10th 1885 in Marseille, France. She was the only daughter of happy married couple and had a pet dog. At some point she and her family left Marseille for an island where her father became the factory owner. Marie's life was forever changed when Gargoyle and the Neo Atlanteans invaded the island and took over the factory for their own evil purposes. Marie's family tried to escape like many others who didn't want to prisoners, but her parents and dog were killed by soldiers. Marie was the only survivor when her mother protected her from the gun shots.
Maire is later found by Jean and Nadia, who crashed landed on her island. They decide to look after her and become her new family. She becomes very found of Nadia pet lion cub King as the two become close friends. She later develops an interest in Sanson.
By 1902, after twelve years since after the defeat of the Neo Atleanteans and the tragic death of Captain Nemo, everyone went there separate ways. Marie has grown into a beautiful young lady and informs the audience about their lives. She married Sanson and are expecting their first child.