CSI Season 15: Peter MacNicol Joins Cast

CSI Season 15: Peter MacNicol Joins Cast

Peter McNicol has boarded the cast of CSI season 15 in a series regular role.

The Ally McBeal/Numb3rs vet will play Assistant Director Stavros Sifter, 40, a career FBI insider and supervisor of Special Agent Avery Ryan (Patricia Arquette) for the Cyber Crime Division in Washington, D.C.

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