(Photo: Steve Dietl/Paramount+)

The upcoming Dexter prequel series, Dexter: Original Sin, has added another big name to its cast. Sarah Michelle Gellar is joining the previously cast Christian Slater, Patrick Gibson, and Molly Brown on the Paramount+ with Showtime series.

Per THR, Gellar will have a “special guest star role as Tanya Martin, the CSI chief at the Miami Metro Police Department and Dexter Morgan’s new boss.”

Nina L. Diaz, president of content and CCO, Showtime, said the following about the casting:

“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. We’re thrilled to have her return to the Showtime/MTV Entertainment Studios family and join the origin story of the Dexter franchise.”

Set in 1991 Miami, Dexter: Original Sin follows Dexter (Gibson) as he transitions from student to avenging serial killer. When his bloodthirsty urges can’t be ignored any longer, Dexter must learn to channel his inner darkness. With the guidance of his father, Harry (Slater), he adopts a Code designed to help him find and kill people who deserve to be eliminated from society without getting on law enforcement’s radar. This is a particular challenge for young Dexter as he begins a forensics internship at the Miami Metro Police Department.

The premiere date for Dexter: Original Sin will be announced later.

What do you think? Do you plan to watch this new Dexter prequel series when it arrives?