"As alleged in the indictment, Allison Mack recruited women to join what was purported to be a female mentorship group that was, in fact, created and led by Keith Raniere", United States Attorney Richard P. Donoghue said in a statement after Mack's arrest a year ago.
"I believed Keith Raniere's intentions were to help people, and I was wrong", Mack told a Brooklyn judge.
U.S. actress Allison Mack has pleaded guilty to charges linked to an alleged sex trafficking operation disguised as a mentoring group. It is unclear how she will plead. Online notes that if convicted, Allison could face 20 years of prison for each count she is charged with. She is due to be sentenced in July. The former Smallville star was spotted hiding in the courthouse's cafeteria from paparazzi ahead of her hearing.
Mack, 36, was arrested a year ago on sex trafficking charges for getting the women to join Nxivm, a purported executive coaching organisation that forced them to have intercourse with 58-year-old leader Keith Raniere.
Prosecutors also allege that the leader of the group, Keith Raniere, established a secret sex cult within the organization, in which "slaves" were branded in their pelvic areas with his initials. Raniere ran the NXIVM sex cult, and Mack confessed to helping manipulate women to become his sex slaves.
Almost a year since being arrested, Allison Mack has entered her plea. After composing herself, Mack apologized to people she felt have been victimized by Nxvim.
Fox News indicates Mack is not the only NXIVM member to plead guilty.
Raniere has pleaded not guilty. The complaint alleged Mack recruited an unnamed actress into the cult, forced the actress to provide collateral which involved "letters detailing false and highly damning accusations against her family members".
Prosecutors said Mack served as Raniere's "master" who "directly or implicitly required [recruits] to have sex with" him, the legal complaint stated.
Others who've been indicted in the case include Seagram heiress Clare Bronfman and the cult's longtime bookkeeper Kathy Russell. Raniere, who has been hit with additional charges including possession of child porn and sexual exploitation of a child, is expected in court later this month.