Selana
From The Stargate Omnipedia
Athosian woman who lost both her parents to the Wraith, likely in the conflict prior to her evacuation with the rest of her people to the city of the Ancestors, Atlantis. She was interviewed by Elizabeth Weir and Sergeant Bates (right before Halling) when the expedition members had reason to suspect that an Athosian was responsible for delivering covert intelligence to the Wraith.
KEY EPISODE
Suspicion - Selana sits down for an interview with Dr. Weir and Sergeant Bates, but receives an interrogation instead.