Allison Mack Pleads Guilty NXIVM Sex Cult Case, Faces Up To 40 Years In Prison

Allison Mack has pleaded guilty to racketeering charges in the high-profile NXIVM sex cult case, RadarOnline.com can report.

The Smallville actress appeared in Brooklyn Federal Court on Monday, April 8 and pleaded guilty to one count of racketeering conspiracy and one count of racketeering.  She now faces a maximum of 40 years in prison.

Mack reportedly had tears in her eyes as she took the stand to declare her plea.

"I have come to the conclusion that I must take full responsibility for my conduct and that's why I am pleading guilty today," the 36-year-old stated in court.

Mack was arrested in April 2018 for her involvement with the alleged sex cult. The cult has been exposed for luring in women who were ultimately abused, starved, blackmailed and threatened.

Mack has spent nearly the last year on house arrest at her parents' Los Alamitos, Calif. home.

The former actress previously admitted to developing a branding practice within NXIVM that burned womens' flesh with cauterizing irons.

Mack's guilty plea comes after former co-defendants Nancy and Lauren Salzman pleaded guilty to racketeering charges.

As of Monday afternoon, the remaining defendants in the case include NXIVM founder Keith Raniere, Seagram's heiress Clare Bronfman and the organization's secretary Kathy Russell.

Sources close to Mack revealed to RadarOnline.com that she has spent the last few weeks "terrified" of going to prison for a long time.

She is scheduled for sentencing on September 11, 2019.