Actress Allison Mack serving 3-year sentence at Dublin prison for role in sex-slave case

DUBLIN, Calif. (KGO) -- Former "Smallville" actress Allison Mack is in prison in Dublin.

She reported Tuesday morning, a few weeks early, for a three year sentence.

RELATED: Actress Lori Loughlin reports to California prison after plea in college admissions scandal

It's for her role in recruiting women into NXIVM as sex slaves.

The group's founder is serving a 120 year prison sentence.

Mack is at the same federal prison where actresses Lori Laughlin and Felicity Huffman recently served time for their roles in the college admissions scandal.

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