Natalya (also known as Nat) is one of the Seeing, a fact that she managed to keep hidden.
Lust from Beyond: Scarlet (Spoilers)
Lust from Beyond (Spoilers)
After the fall of the Scarlet Lodge, Nat (now calling herself Natalya) has struggled with the horrors she endured, both in Lusst'ghaa and with the Lodge. Deciding that she cannot escape the grip Lusst'ghaa has on her, she decides to join the Cult of Ecstasy. However, she explains to Victor that she still feels uneasy with their rituals and holds back from fully participating.
Nat / Natalya is named for her voice actress, Natalya Ivanova. In Lust from Beyond: Scarlet, she voices the Scarlet Lodge cultist depicted on this page. As such, it is assumed that this cultist is Nat herself.