I don't have much to back it up but I think Debra has the same face as the pic of the blonde haired Clara girl. I think they captured her sister to experiment on and dyed her hair blonde. Clara does not have the same face as Ada #2 in blue "evil Ada" . I think a lot of people forgot about that important scene. remember when Simmons took Debra himself....he also had lab workers with him. also, Helena knew that Simmons was trouble right away.