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Emma Roberts as Brooke Thompson – One of the camp counselors, brave and resourceful.
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Leslie Grossman as Margaret Booth – Camp owner with a hidden dark agenda.
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Billie Lourd as Montana Duke – A camp counselor with a dramatic flair.
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Matthew Morrison as Richard Ramirez – Based on the real-life serial killer, appears as a sinister figure.
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Zach Villa as Richard Ramirez / Ghost – Adds supernatural horror elements.
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Finn Wittrock as Chet Clancy – A counselor with hidden motives.
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John Carroll Lynch as Mr. Jingles – The returning masked killer, central to the slasher plot.
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Sarah Paulson as Crazy Nurse / Cameo – Adds meta-horror and dark humor.
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Evan Peters as Xavier / Cameo – Returns in a supporting or cameo role, typical of AHS crossovers.