WHO: Quebec [Imprint: Artemisia Rice] and Richard Walker
WHAT: Quebec's original personality is Misha. Richard Walker, a former doll, is her closest friend/boyfriend. He was the one who got her involved with the Dollhouse to begin with. To cope with her absence, he hires a Doll version of Misha to keep him company. Imprint Misha is unaware of being an Active. Trouble is, she's starting to notice inconsistencies.
( Maybe it's the treatments. )