Updated: 9:41 AM ET, Tue April 9, 2019

Actress Allison Mack was arrested back in April of 2018 for being accused of her alleged involvement with Nxivm (pronounced NEX-ium), which is an organization that claimed to be a self-help program but really was pyramid scheme in which some recruits were exploited “both sexually and for their labor, to the defendants’ benefit,” according to Richard P. Donoghue, the U.S. attorney.

Mack is accused of recruiting women to join a “female mentorship group” when really, it was an organization created and led by Keith Raniere, the Nxivm’s founder who was known within the group as Vanguard.

Last year, Mack was best known for her role as Chole, Clark Kent’s smart confidant on the CW’s “Smallville.” Mack was indicted on the charges of sex trafficking, sex trafficking conspiracy, and forced labor conspiracy, according to a legal statement that was released by the Justice Department. The star pleaded not guilty at the time of being accused.

Officials stated that Mack, 36, was the co-creator of a program within Nxivm, which was to target actors.

The charges against Mack stemmed from what police say were activities that took place as part of a secret society within Nxivm called “DOS,” which involved recruiting women and grooming others under false acts to be sexual partners for Raniere, according to the case.

There were several women involved whose identities are not revealed in the court papers. The women claimed they were blackmailed into complying, and mentioned that DOS had compromising information about them.

Allison Mack is facing a maximum of 40 years in prison, 20 years for each count. Her sentence is set for September 11, 2019.