Sarah Michelle Gellar on board for Dexter: Original Sin

Sarah Michelle Gellar will play the boss of a certain serial killer in training in Dexter: Original Sin.

In a special guest role, Gellar (pictured below) plays Tanya Martin, the CSI chief of the Miami Metro Police Department and the new boss of Dexter Morgan (Patrick Gibson).



Paramount+'s 10-part drama series with Showtime is set in 1991 Miami and follows Dexter, a college student who hones his skills as an assassin with the help and support of his adoptive father Harry (Christian Slater).

He finds comfort and understanding in his father, especially when his bloodthirsty urges grow and can no longer be ignored. As his only confidante, Harry teaches Dexter a code that will help him find and kill people who deserve to die. This presents a special challenge for young Dexter as he begins a forensic internship with the Miami Metro Police Department.

The cast also includes Molly Brown, James Martinez, Christina Milian, Reno Wilson, Alex Shimizu and Patrick Dempsey. Production is currently underway in Miami with Clyde Phillips at the helm.

“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,” shared Nina L. Diaz, President of Content and Chief Creative Officer, Showtime/MTV Entertainment Studios & Paramount Media Networks. “We’re thrilled to have her return to the Showtime/MTV Entertainment Studios family and join the origin story of the Dexter franchise.”

Dexter: Original Sin is produced by Phillips and produced by Showtime Studios and Counterpart Studios. Scott Reynolds also serves as executive producer alongside Hall, Mary Leah Sutton, Tony Hernandez and Lilly Burns, with Robert Lloyd Lewis producing. Michael Lehmann will serve as directing executive producer.

Gellar starred in the Paramount+ genre series Wolf Pack and served as executive producer. She is best known for her work in Buffy the Vampire Slayer as the titular Buffy Summers. Other roles include CBS's The Crazy Ones with Robin Williams and The CW's Ringer.