Pepper is a microcephalic woman that has been committed to Briarcliff Manor. She seems gentle and playful but has been accused of a violent crime.
Welcome to Briarcliff - When Lana Winters first arrives at Briarcliff, Pepper hands her a flower, saying "Play with me!" Sister Mary Eunice asks Pepper to leave Lana alone, but Lana insists that Pepper is just trying to make friends. Mary informs Lana that she is anything but harmless, having drowned her sister's baby and cut off his ears. Pepper can later be seen chanting "Fight!" during the brawl between Spivey and Kit Walker.
Tricks and Treats - Pepper is chastised by Sister Jude for hoarding food in her cell. When quizzed about the purpose of this rule she gleefully replies, "Rats!"
Nor'easter - During movie night, Pepper leaves the common room in a hurry to pee. She doesn't return in time to prevent Sr. Jude from mistaking her for one of the three escapees.
The Coat Hanger - Pepper reappears in a cell following the bright lights and the arrival of the aliens, where she tells Dr. Arden that she will take care of the pregnant Grace, who has miraculously been revived.
The Name Game - Pepper has been charged with Grace's protection, claiming that Arden's experiments couldn't impair the child's safety. Pepper claims that she was falsely accused with murdering and mutilating her nephew. It is believed that the humanoids have given significant augmentation to her intelligence. She also seems to have information regarding the humanoids.
Spilt Milk - Pepper is seen alongside Grace when Oliver Thredson comes into the common room. Pepper defends her charge and tells Thredson that she knows what he is really up to. Thredson tells the orderlies in the room to take Pepper in for hydrotherapy.
Continuum - Pepper and Jude become friends and look out for each other after Kit and Lana leave Briarcliff. Two years later Jude has forgotten most of what happened and is informed that Pepper had passed away in the Winter of 1966.
To Arthur Arden: "Doctor Arden, you still see me as microcephalic. When my sister's husband drowned her baby and sliced his ears off he told everyone I did it. They tied me up and paraded me in front of the judge, he took one look at the shape of my head and I was locked up for good. That's how it works for us freaks, we get blamed for everything. But if something happens to Grace in here and she is harmed in any way there won't be anyone else to blame. They will take you, open up your head, and stir your brain with a fork. And when you return you will witness first hand how they treat us freaks. I'll take care of Grace. Why don't you go to your whore-nun to help you resume your afflicted ego?"