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Maya is a civilian within the Fleet, entrusted by President Roslin to adopt and raise Hera, the Human/Cylon hybrid child of Karl and Sharon Agathon. After deciding that the child cannot be raised by her birth parents, Roslin summarily orders Galactica's Chief Medical Officer (CMO) Dr. Cottle to stage Hera's death as a means to hide her from both human and Cylon knowledge.
Selected from a list created for Roslin by Tory Foster, Maya is told that the baby was given up by an officer on Pegasus due to political and religious reasons (Downloaded). Maya names the child Isis, unaware of her true origins (Lay Down Your Burdens, Part II).
Maya is killed during the Battle of New Caprica while attempting to escape the Cylon-occupied planet with her adopted daughter. Gaius Baltar and Caprica Six find the child unharmed under Maya's body. D'Anna Biers takes the child before the Cylons abandon the planet (Exodus, Part II).