Sharon believed she was a well-liked Raptor pilot (callsign "Boomer") until her true identity as a Cylon infiltrator was revealed. That copy of Sharon was killed on the Galactica (and resurrected on Caprica), but a different avatar of Sharon fell in love with Karl "Helo" Agathon and aided the humans against the Cylons on New Caprica, earning Admiral Adama's trust and winning a commission as an officer and pilot in the Colonial Fleet; she flies under the callsign "Athena." Athena and Helo are married and have a daughter, Hera, the first human-Cylon hybrid. Despite her loyalty to the humans, Sharon Agathon's origins still sometimes provoke tension among her colleagues and within her own mind. Meanwhile, other copies of Sharon — including the resurrected Boomer — continue to live among the Cylons.
Writer of Helix & BSG - Ron Moore answers some of your facebook questions.
Check out an inside look at the design of Battlestar Galactica: Blood & Chrome.
Get a closer look into the main characters of Battlestar Galactica: Blood & Chrome.