Lorette also known as #66, appeared in the episode, "The Tale of Many Faces", she was portrayed by Mandy Schaffer.
Lorette is a beautiful teenage girl, who some time ago met up with Madame Visage. How she encountered her is unknown, but she was tricked
into using the special face powder, in which eventually Madame Visage was able to actually capture her face. She soon became one of Madame Visage's masked slaves as #66.
Lorette, possibly played along because she may have had friends or siblings she was afraid Madame Visage would go after if she didn't willingly help her.
Over time, However, she wore a different housecoat than the others, it can be assumed she became a trusted and loyal assistant or she let the feeling of power get to her head. She was trusted with leading new victims to Madame Visage and keeping keys and reporting disobedient slaves.
Madame Visage used her face and posed as her being a talent scout to lure a young teenage model named Emma to come to the theater as a new victim.
When she caught Lizzie and Emma snooping through the magical book of faces, She at first willingly reported them to Madame Visage to receive punishment.
When Emma tried to burn the punishment book. by throwing it into the fireplace she frantically screamed no. Possibly, she had sisters or friends captured inside of it and was worried for them.
Eventually it can be assumed that when Emma encouraged all of the faceless girls to stand up for themselves against Madame Visage she realized there was strength in numbers and joined the mutiny.
Then she helped Emma return Madame Visage's real face to her which killed her from old age. She was were thrilled and ecstatic when she got her face back. She then apologized to Emma for Madame Visage using her face as bait to come to the theater.