The television actor Allison Mack, who pleaded guilty for her role in a sex-trafficking case tied to the cult-like group NXIVM, has been released from a California prison, according to a government website.

Mack, best known for her role as a young Superman鈥檚 close friend on 鈥淪mallville,鈥� was sentenced to three years behind bars in 2021 after pleading guilty two years earlier to charges that she manipulated women into becoming sex slaves for NXIVM leader Keith Raniere.

Online records maintained by the Federal Bureau of Prisons said Mack, 40, was released Monday from a federal prison in Dublin, California, near San Francisco. Her release was first reported by the Albany Times-Union.

Mack avoided a longer prison term by cooperating with federal authorities in their case against Raniere, who was ultimately sentenced to 120 years in prison after being convicted on sex-trafficking charges.

Mack helped prosecutors mount evidence showing how Raniere created a secret society that included brainwashed women who were branded with his initials.

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