"Grey's Anatomy" alum Patrick Dempsey has joined the cast of the upcoming "Dexter" prequel on Showtime.

Dempsey, 58, has joined the cast of Showtime’s Dexter prequel series, Original Sin, as a series regular.

The upcoming Dexter prequel series Original Sin has locked up another major star for its cast. Patrick Dempsey, the veteran of Grey’s Anatomy, has joined the Paramount+ Showtime show as a series ...

Grey's Anatomy vet Patrick Dempsey is joining Dexter: Original Sin. Who will he play in the prequel series, and was the character in the original show?

Patrick Dempsey Joins ‘Dexter: Original Sin’ Prequel as Series Regular The “Thanksgiving” actor will play a police captain in his first fulltime American TV role since departing “Grey ...

Dexter's adoptive father, Harry (James Remar in the original series), will be portrayed here by Christian Slater. A Miami ...

After playing Dr. Derek Shepherd on 11 seasons of Grey’s Anatomy, Patrick Dempsey isn’t afraid of a little blood. Dempsey, 58, has joined the cast of Showtime’s Dexter prequel series ...

The new series will also star Patrick Dempsey. Fans of the vigilante killer Dexter Morgan officially have a first look at his prequel series, "Dexter: Original Sin." Patrick Gibson as Dexter ...

Gellar joins previously announced stars Christian Slater, Patrick Gibson and Patrick Dempsey in the Paramount+ series. By James Hibberd Writer-at-Large Paramount+’s Dexter prequel cast keeps ...

Patrick Dempsey is joining the cast of "Dexter: Original Sin." The upcoming series for Paramount+ Showtime is a prequel to the award-winning crime drama television series, "Dexter," which aired ...

McDreamy will soon face off against a teenage Dexter Morgan: Patrick Dempsey has joined Paramount+ with Showtime’s Dexter prequel Original Sin as a series regular, the streamer/network announced ...

Patrick Dempsey ‘s turning in scrubs for a uniform. The actor, best known for his role on “Grey’s Anatomy” has joined the cast of “ Dexter: Original Sin ” as a series regular. He is ...