Actress Allison Mack, best known for her role in "Smallville,"

was released early from a California prison Monday after serving two years,

the Federal Bureau of Prisons confirmed.

She was sentenced to three years behind bars in 2021 after pleading guilty to racketeering and conspiracy charges two years earlier.

Mack's charges were related to her involvement with the cult-like group NXIVM.

The company began in 1998 as a "self-help" company,

but prosecutors say it became a sex trafficking organization.

They say Mack helped recruit and manipulate women into becoming sex slaves for its leader, Keith Raniere

The women were also allegedly branded with Raniere's initials in their pelvic area.

Raniere was convicted on sex trafficking charges and sentenced to 120 years in prison in 2020.