Not applicable (female appearance, female personality)
|Out of universe information|
Ava Dixon was a Tau'ri-built Human-form Replicator, one of two models that Dr. Richard Poole made, as part of Project Archetype. She had no self-replication as a function and she was also immune to the effects of the Anti-Replicator gun technology. She was programmed for social interaction. Ava knew she was a replicator.
She was a copy of the real Ava Dixon who died in a car accident in 2007, Poole programmed her with Ava's memories that he gave her. In 2008, she worked with Richard Poole to produce a Replicator, but one day she received orders to destroy all evidence and their research by Henry Wallace, when he had been arrested.
A few months before she made contact with Lt. Colonel John Sheppard and Ronon Dex she had been checking on them at the time when Wallace abducted Jean Miller and Dr. Rodney McKay. And so when the other Replicator managed to escape from them when Poole tried to turn him. She is working with Poole to try to track down the Replicator but had no luck. She contacted Sheppard and Ronon who was on Earth and told them everything about Project Archetype and the runaway Replicator. She worked with Sheppard to track down Poole's Replicator with Dr. Bill Lee. They found him and had almost caught him only until he masked his energy signature.
After Lee managed to crack Poole's computer code, he found information about Ava that she had died a few months earlier and the other one was a Replicator. She found out about it and then Sheppard found out. After they found the Replicator they intervened so that Ava could stop him and she gave Sheppard a chance to attach a tracking transmitter on Replicator and beamed him into orbit. Ava knew she could not be released because she was a Replicator, and she was a security risk. Lee transferred her entire consciousness to a virtual reality pod at Stargate Command where she could explore her world of illusion, how she wanted to. While her nanite body had "scrapped" by then and melted down and used for anything else. (SGA: "Outcast")