Actress Sarah Michelle Gellar joins "Dexter: Original Sin" prequel series as CSI Chief Tanya Martin, Dexter Morgan's boss in 1991 Miami.

Actress Sarah Michelle Gellar is set to star in the new prequel series "Dexter: Original Sin" as Tanya Martin, the CSI Chief at Miami Metro Police Department and Dexter Morgan's new boss. The series, set in 1991 Miami, follows a young Dexter Morgan during his forensic internship, transitioning from student to vigilante serial killer. The show will also star Patrick Gibson as a young Dexter Morgan and Christian Slater as his adoptive father, Harry.

June 27, 2024
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