|Full name:||Rachel Duncan|
|Alias:||Proclone (by Sarah)|
|Portrayed By:||Tatiana Maslany|
|First Appearance:||"Unconscious Selection"|
|Latest Appearance:|| "Endless Forms |
Unlike the others, though, Rachel grew up aware of who and what she is as she was, according to Amelia, "a child raised by Neolution" and is thereby dubbed as a "proclone" by Felix. Years into adulthood, she is still working with her creators and, upon discovering that some of her fellow clones have become self-aware, is even trying to get the other clones to work with them.
In "Endless Forms Most Beautiful", it can be speculated that she initiated a kidnapping attempt of Sarah's daughter, Kira, and their foster mother, Mrs. S if Sarah refused Neolutions offer. However, it is still unclear whether Mrs. S was part of the plan to abscond with Kira or if she pieced together the danger and ran with Kira leaving the Neolution associates to frustratedly ransack the house in a search for clues to their destination.