Elenore Baker is a main character in the anime Madlax, serving as the household maid and fiercely dedicated protector of Margaret Burton, whom she always addresses as Ojou-sama. A few years older than Margaret, Elenore has already graduated from high school. She is a petite young woman with short, dark brown hair and brown eyes, and she always speaks in a correct and very polite manner. However, her demure appearance belies a surprising strength and skill in combat, as she is proficient in martial arts and, when the situation demands it, has no trouble handling firearms. Her devotion and persistence allowed her to graduate from school years ahead of schedule and later become an expert in hand-to-hand combat.

The core of Elenores identity is her absolute and unwavering devotion to Margaret Burton. Her family has served the Burtons for generations, and this legacy, combined with her own deep feelings, fuels her every action. She does not seek to marry, attend college, or start a career; her lifes sole purpose is to care for Margaret. Elenore is exceptionally patient, taking care of her mistress who is often absent-minded, clumsy, and prone to falling asleep or speaking of things that do not make sense. She almost never scolds Margaret. However, this patience vanishes when anyone is perceived as a threat to Ojou-sama, to whom she becomes intensely suspicious, unforgiving, and even spiteful. Despite her seriousness, she possesses a good sense of humor and can appreciate and reciprocate friendly teasing from her neighbor, Vanessa Rene.

Elenores entire world revolves around her relationship with Margaret. She loves Margaret dearly, worries about her constantly, and is willing to do anything to protect her. She states unequivocally that Margaret is not just her charge but her family. Elenore shares a close friendship with their neighbor, Vanessa Rene. Though they care for each other, their relationship is marked by mutual teasing, such as Elenore pretending not to remember Vanessa upon her return. Their strongest common bond is their shared love for Margaret. Elenores sense of duty is rooted in her relationship with her late grandfather, who was the butler for the Burton household. On his deathbed, he entrusted the care of Margaret to Elenore, reminding her that the Bakers have always served the Burtons, and her visible grief at his passing underscores her deep love for him.

Throughout the story, Elenore acts as Margarets constant companion and protector, accompanying her into dangerous situations, including the war-torn region of Gazth-Sonika. When Margaret is captured by the antagonist Friday Monday, Elenores determination becomes a primary driving force. Alongside Vanessa and the mercenary Madlax, she sets out to rescue her. Even after the tragic death of her friend Vanessa, Elenore begs to continue the mission, fully aware that it may cost her life. In the final episodes, she fights against soldiers for the first time, demonstrating her capability and courage. After being shot in the back, she demonstrates unbelievably strong willpower, crawling through a field of flowers to reach Margaret. Even when Friday Mondays mind control tempts her with a dark impulse to be free of her restricted life and harm her mistress, Elenores boundless love allows her to overcome it. In her final moments, she reflects that her years of service were not performed out of duty, but because it was her deepest wish, reaffirming that Margaret is her one and only family.