What is the thematic different between the Caretaker, the Innocent, and the Victim?
The Caretaker is a nurse, or is at least themed around medical care.
The Victim is a final girl, and orbits around slasher movie tropes.
The Innocent is closest to, like, a gothic heroine. They're pure and strong of character.
The Victim and the Innocent tread slightly similar territory, but the Victim is about luring monsters and fighting back and the Innocent is about support and self-sacrifice.