Gina Inviere[1] is the alias (meaning "resurrection" in Old Gemenese) of a humanoid Cylon who poses as a systems analyst aboard the battlestar Pegasus.
Several months before the attack on the Twelve Colonies, she presented the retrofit of Pegasus to the Ministry of Defense and worked out the details of the CNP upgrade with Admiral Cain. During that time, the two grow close and eventually start having a relationship. They try to be discreet in front of the crew, but don't make it a secret either.
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