Allison Mack Reveals NXIVM Cult Secrets in Emotional Podcast Reunion with Michael Rosenbaum

Breaking News: Allison Mack Reunites with 'Smallville' Co-Star Michael Rosenbaum to Detail NXIVM Cult Allison Mack, former actress and convicted member of the NXIVM cult, has shared new details about her involvement with the group in a recent episode of the Inside of You podcast. Mack, who was arrested in 2018 and served prison time for her role in enabling cult leader Keith Raniere, reunited with her Smallville co-star Michael Rosenbaum to discuss her 12-year involvement with NXIVM. Mack and Rosenbaum, who have known each other since 2001, detailed her time in the cult during the podcast episode, which was released on November 19, 2025. According to Mack, she was sent a letter by Raniere after her arrest, which she described as "insidious." The letter, which Mack did not disclose the contents of, was a clear indication of Raniere's continued manipulation and control over his followers. The immediate impact of Mack's revelation is a renewed focus on the NXIVM cult and its leader, Keith Raniere. The cult, which was exposed in 2018, was known for its coercive and manipulative tactics, which included emotional and physical abuse of its members. Mack's testimony is a significant development in the ongoing investigation into Raniere's activities. In the background, NXIVM was a self-help organization that was founded in the 1990s by Raniere. The group claimed to offer personal development and self-improvement courses, but it was later revealed that it was a cult that used coercive tactics to recruit and retain members. Mack's involvement with the group began in 2006, and she eventually rose to a leadership position within the organization. As for what happens next, it is unclear whether Mack's testimony will lead to further investigations or charges against Raniere or other members of the cult. However, her revelation is a significant development in the ongoing effort to expose and understand the NXIVM cult and its activities.