Grey's Anatomy favorite cast in regular role in Dexter: Original Sin

A popular actor from Grey's Anatomy has been added to the cast of Dexter: Original Sin. The Dexter prequel series stars Dr. McDreamy, aka Patrick Dempsey (photo below), plays Aaron Spencer. He is the captain of the Miami Metro Homicide squad who has a decades-long relationship with Harry Morgan (Christian Slater).



Dexter: Original Sin stars Patrick Gibson, who takes over the role of the titular serial killer (in his younger years) made famous by Michael C. Hall in Showtime's series. Molly Brown, James Martinez, Christina Milian and Alex Shimizu also star. Production is underway in Miami with Clyde Phillips at the helm.

The original 10-episode drama series follows Dexter in 1991 Miami, a college student who turns into a serial killer in training. When his bloodthirsty urges can no longer be ignored, Dexter finds comfort and understanding in Harry. 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.

“Patrick Dempsey is a beloved actor who is internationally known for the iconic characters he has played and his performances,” said Chris McCarthy, Paramount Global co-CEO and President/CEO, Showtime & MTV Entertainment Studios. “We are thrilled to have him join our all-star cast of Dexter: Original Sin, the highly anticipated origin story of the 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.

Dempsey is best known for his role of Dr. Derek Shepherd on the ABC series Grey's Anatomy, which earned him a SAG Award and multiple Golden Globe nominations. He is also known for starring in classic '80s films such as Can't Buy Me Love and Loverboy.

Dempsey also appeared in Epix's miniseries The Truth About the Harry Quebert Affair and the Italian series Diavoli/Devils.