Jeffrey Epstein’s “Core 4” consists of Sarah Kellen, Adriana Ross, Nadia Marcinkova, and Lesley Groff. These four women were described in numerous civil complaints and victim accounts as the closest female aides embedded in Epstein’s day-to-day operations. Kellen and Groff handled scheduling, travel coordination, and communication across Epstein’s properties, while Marcinkova and Ross were frequently identified by accusers as recruiters or intermediaries who introduced younger girls into Epstein’s orbit. Their names appear repeatedly in lawsuits filed in Florida and New York, where survivors alleged they were instrumental in maintaining the structure that allowed Epstein’s abuse to continue.


All four were reported to have received immunity under the controversial 2008 federal non-prosecution agreement brokered in Florida, a deal that later drew intense national criticism. After Epstein’s 2019 arrest and death, scrutiny returned to this inner circle, particularly regarding what they knew and how involved they were in recruitment, scheduling, and financial transactions tied to the operation. None of the four have been criminally convicted in connection to Epstein’s trafficking case, and they have denied wrongdoing through legal filings or public statements. Still, in the broader narrative of Epstein’s network, this “Core 4” designation reflects how survivors and litigators consistently identified them as central figures in the machinery that surrounded and sustained Epstein for years.



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