Sarah Michelle Gellar to play Dexter's boss in 'Dexter' prequel

Sarah Michelle Gellar , '90s icon and beloved scream queen, has joined "Dexter: Original Sin." She'll be playing the CSI chief of the Miami Metro Police Department.

• 

  Sarah Michelle Gellar and Freddie Prinze Jr.'s daughter is a mini Buffy

• 

  Oscar Isaac and Kristen Stewart to play a vampire couple in new thriller

© CBS Photo Archive

Gellar is the latest star to join the cast of the new series , which will be led by Patrick Gibson, portraying the role of Dexter Morgan. "Dexter: Original Sin" is a prequel to "Dexter," the successful Showtime series following a blood spatter analyst working for the Miami Police Department who moonlights as a serial killer. The series ran for eight seasons and earned multiple awards, including acting accolades for its lead actor Michael C. Hall. The franchise has proved to be greatly successful; in 2020, a limited series was released titled "Dexter: New Blood."

Gellar will play the guest-starring role of Tanya Martin. She joins a cast made up of Gibson, Christian Slater, Patrick Dempsey, Molly Brown, James Martinez, Christina Milian, Alex Shimizu, and Reno Wilson.

Gellar is a huge pop culture icon, known for her performance in "Buffy: The Vampire Slayer," and films like "Scooby Doo," "Cruel Intentions," "I Know What You Did Last Summer," and more. “Sarah Michelle Gellar is a pop culture icon who perfectly rounds out our best-in-class cast featuring Christian Slater and Patrick Dempsey among others,” said Nina Diaz, president of content and chief creative officer of Showtime/MTV Entertainment Studios & Paramount Media Network.

© Bruce Glikas

More details about 'Dexter: Original Sin'

"Dexter: Original Sin" will focus on a young Dexter, who's concluding school and beginning his internship at the Forensics team at the Miami Police Department. He's also getting his start as a serial killer, with the guidance of his father, played by Christian Slater, who helps him create a code that protects him from law enforcement and ensures that he only kills the people who deserve it.

The series is expected to premiere in February 2025.