Dexter Prequel Show Casts 9 Recurring Characters, Including Dexter's Moms

Summary

  • Dexter: Original Sin
    introduces new cast members, shedding light on Dexter’s mothers and previous characters.
  • Surprising familiar names like Laura Moser and Dorris Morgan will provide new depths to Dexter’s past and storyline in the prequel.
  • The addition of characters like Hector Estrada and Santos Jimenez hints at more secrets to be uncovered in
    Dexter: Original Sin.



Dexter: Original Sin has rounded out its cast with nine new roles, including Dexterโ€™s biological and foster mothers. Set 15 years before the events of the original series, previous casting announcements have already revealed that Shadow and Boneโ€™s Patrick Gibson will be playing the younger version of Michael C. Hallโ€™s Dexter Morgan, opposite Christian Slater as his foster father Harry. Other surprising cast announcements have also included Patrick Dempsey (Greyโ€™s Anatomy) as Miami Metro Police Captain Aaron Spencer, and Sarah Michelle Gellar (Buffy the Vampire Slayer) as Dexterโ€™s new boss, CSI Chief Tanya Martin.


Per Deadline, the Dexter: Original Sin cast has added nine new faces in the form of Joe Pantoliano (The Sopranos), Brittany Allen (The Boys), Randy Gonzalez (Bloodline), Aaron Jennings (Pure Genius), Raquel Justice (One Day at a Time), Jasper Lewis (V/H/S), Carlo Mendez (The Bay), Isaac Gonzalez Rossi (Thatโ€™s Amor) and Roberto Sanchez (Palm Royale). Allen, previously known for playing the Supe Popclaw on The Boys, is set to play Dexterโ€™s biological mother, Laura Moser, while Lewis will play his adopted mother, Dorris.

Check out the current cast lineup below:

Actor

Dexter: Original Sin Role

Patrick Gibson

Dexter Morgan

Molly Brown

Deborah Morgan

Christian Slater

Harry

Sarah Michelle Gellar

CSI Chief Tanya Martin

Patrick Dempsey

Captain Aaron Spencer

Reno Wilson

Bobby Watt

James Martinez

Angel Martinez

Christina Milian

Maria LaGuerta

Alex Shimizu

Vince Masuka

Joe Pantoliano

Mad Dog

Brittany Allen

Laura Moser

Randy Gonzalez

Santos Jimenez

Aaron Jennings

Clark Sanders

Raquel Justice

Sofia

Jasper Lewis

Dorris Morgan

Carlo Mendez

Hector Estrada

Isaac Gonzalez Rossi

Gio

Roberto Sanchez

Tony Ferrer



Dexterโ€™s New Cast Members Suggest A New Look At His Motherโ€™s Death

Audiences May Not Know Everything About Dexter’s Mom

Given that the original show has already provided a fairly extensive account of Lauraโ€™s death at their hands, bringing their roles back for the prequel series would suggest there are still more secrets to be discovered about Dexterโ€™s past.

While Allenโ€™s casting as Dexterโ€™s biological mother may be surprising, given that the original show already covered her brutal murder in some depth, it is likely the new Dexter prequel will continue providing flashbacks to his formative years. However, Allenโ€™s Laura Moser is not the only familiar name to be revealed in the latest casting announcements, as both Hector Estrada (Mendez) and Santos Jimenez (Gonzalez) are also characters audiences have met previously.


Related

10 Best Dexter Episodes, Ranked

Dexter is one of the most compelling crime dramas of the 2000s, with several standout episodes that embody the show’s most interesting themes.

As the drug lord and his accomplice responsible for Lauraโ€™s brutal killing, Hallโ€™s Dexter would eventually come to dispatch his unique form of justice to the older versions of the characters originally played by Nestor Serrano and Tony Amendola. Given that the original show has already provided a fairly extensive account of Lauraโ€™s death at their hands, bringing their roles back for the prequel series would suggest there are still more secrets to be discovered about Dexterโ€™s past.


Perhaps most fascinating, however, is the addition of Lewisโ€™ Dorris Morgan, a character who only appeared sporadically in the original show. According to Dexter season 1, Dorris died of cancer when Deborah Morgan was only 16 years of age, which is roughly around the age that Molly Brownโ€™s version of the character should be during the events of the new spinoff. As such, Dorrisโ€™ death may form a crucial plotline for Dexter: Original Sin, with its titular serial killer being forced to watch a second mother figure die before his eyes.

Source: Deadline

Dexter Original Sin (2025)