TheDexterprequel seriesDexter: Original Sinfeatures a slate of new actors playing familiar characters from the original series. Developed byNew Bloodcreator Clyde Phillips,the prequel series chronicles a post-college Dexter as he embraces his “dark passenger"through the guidance and teachings of his adopted father, Harry.Dexter implements Harry’s codeto satisfy his violent urges while making sure never to get caught. The originalDexterfeatured a variety of flashbacks of Dexter’s upbringing with Harry and the formation of the code, which the prequel expands on.
After Michael C. Hall reprised his iconic role as the charismatic vigilante serial killer in 2021’sDexter: New Blood, he returns asDexter’s inner voice and narrator in the prequel series. The series takes place in Miami in 1991 as Dexter begins his career at Miami Metro PD.Dexter: Original Sinwill likely cover a few anticipated killsthat are already established in Dexter’s lore.Another upcoming Dexter series,Dexter: Resurrection, is expected to be released in the summer of 2025with Hall also slated to return.Dexter: Original Sincould be the first of several newDexterspin-offs and sequel series in the coming years.
New episodes ofDexter: Original Sinrelease every Friday exclusively on Paramount+.
Patrick Gibson as Dexter Morgan
Actor: Patrick Gibson, 29, is an Irish actor from Dublin. He is just the second actor ever to appear in a leading role as the notorious Dexter Morgan. Gibson isbest known for starring as Steve Winchell in the popular Netflix sci-fi fantasy seriesThe OA. He is also recognized for his role as Nikolai Lantsov in another Netflix fantasy series,Shadow and Bone. Gibson made his television debut in 2009 in three episodes of the historical drama seriesThe Tudors. He has also starred in several feature films, such as the 2019 biopicTolkienalongside Nicholas Hoult. He is set to star as Keith McDermott in the upcoming filmThe Boy in Burton’s Shadow.
Shadow and Bone
The Tudors
Son of Aske
Character: Gibson will portray a college-aged Dexter Morgan who starts his dual professions as a vigilante serial killer and a Miami Metro forensics intern inDexter: Original Sin.
Molly Brown as Debra Morgan
Actor: Molly Brown is an American actress from Cedar Rapids, Iowa. Brown made her first television appearance in a 2016 episode of ABC’s legal dramaConvictionbefore appearing in a number of notable series in 2018, such asHigh Maintenance,Law & Order: Special Victims Unit, andThe Marvelous Mrs. Maisel. Brown recentlyappeared as Elizabeth Prince on the celebrated Showtime seriesBillionsand starred as Leslie in the notable Paramount+ original seriesEvil. She is slated to appear in the upcoming projectsMoochandLittle Tuesdays.
Billions
Liz Prince
Character: Brown will play a younger version of Dexter’s sister Debra Morgan inDexter: Original Sin.
Christian Slater as Harry Morgan
Actor: Christian Slater, 55, is an American actor from New York. He has starred in many classic films and television series, such asTrue Romance(1993),Archer(2009-2023),Heathers(1988), andInterview with the Vampire(1994).He notably co-starred alongside Rami Malek in the celebrated seriesMr. Robot.He made his feature film debut as the lead in the 1985 action dramaThe Legend of Billie Jeanbefore rising to prominence as Jason “J.D.” Dean inHeathers. He recently appeared in the phycological thrillerBlink Twiceand is cast in the upcoming zombie horror seriesArmy of the Dead: Lost Vegas.
Archer
Slater
Character: Slater takes the reins of Dexter’s adoptive dad, Harry Morgan, from James Remar inDexter: Original Sin.
James Martinez as Angel Batista
Actor: James Martinez, 44, is an American actor from Jackson Heights, New York. Martinez was featured inBillionsand also played Juan in the celebrated seriesThe Deucewith James Franco and Maggie Gyllenhaal. Martinez is likely best known for his recurring role as Armando Salazar in the Hulu/Disney original seriesLove, Victor(2020-2022). He also recently starred in the 2023 Paramount+ seriesWolf Pack,had a recurring role inHouse of Cardsseason 5, andeven appeared in an episode ofBreaking Badin 2011. He is set to appear in the upcoming action crime seriesThe Savantalongside Jessica Chastain.
Love, Victor
Armando Salazar
Character: Martinez plays Detective Angel Batista in his younger years at the Miami Metro Police Department.
Christina Milian as Maria LaGuerta
Actor: Christina Milian, 43, is a notable pop singer and songwriter whose music career rose to prominence during the 2000s. She has appeared in several classic television series, such asSister, Sister(1996),Smart Guy(1999),Charmed(1999), andThe Wild Thornberrys(1999).She sang the classic Kim Possible theme song “Call Me, Beep Me"and had several notable singles, including “Dip It Low” and “Gonna Tell Everybody.” She has recently appeared in several episodes ofFamily Guy, the Starz original seriesStep Up: High Water, and the Netflix Christmas movieMeet Me Next Christmas.
Meet Me Next Christmas
Layla
Character: Milian takes over the role of Detective Maria LaGuerta from Luna Lauren Velez inDexter: Original Sin.
Alex Shimizu as Vince Masuka
Actor: Alex Shimizu is an American actor born in New York of Japanese descent. He is best known for his roles as Tadashi Ito inThe Blacklistand Toshiro Furuya inThe Terror. Shimizu rose to prominence in the 2013 series Alien Down before appearing inPerson of Interest(2014) and one episode ofCommunityin 2015. Shimizu also appeared in one episode of S.W.A.T. in 2019 and appeared in the Hulu miniseries Interior Chinatown alongside Jimmy O. Yang.
Interior Chinatown
Josh
Character: Shimizu plays a younger Vince Masuka, Dexter’s crude CSI coworker, in the Dexter prequel series.
Dexter: Original Sin Cast & Characters
Patrick Dempsey as Aaron Spencer: Dempsey will play police captain Aaron Spencer at Miami Metro. He’s best known for his roles inGrey’s Anatomy,Enchanted, andFerrari.
Sarah Michelle Gellar as Tanya Martin: Gellar will play CSI Chief Tanya Martin, Dexter’s first boss, at Miami Metro. She is best known forBuffy the Vampire Slayer,Cruel Intentions, andScooby-Doo.
Reno Wilson as Bobby Watt: Wilson will play Harry’s best friend and partner Bobby Watt at Miami Metro. He is also Debra’s godfather. He is best known forMike & Molly,Good Girls, andFatal Attraction.
Joe Pantoliano as Mad Dog: Pantoliano is best known forMemento,The Fugitive, andThe Matrix.
Brittany Allen as Laura Moser: Allen is best known forThe Boys,What Keeps You Alive, andJigsaw.
Randy Gonzalez as Santos Jimenez: Gonzalez is best known forBloodline,Bosch, andGraceland.
Aaron Jennings as Clark Sanders: Jennings is best known forMovie 43,Pure Genius, andNCIS.
Raquel Justice as Sofia Rivera: Justice is best known forOne Day at a Time,Andi Mack, andBlack-ish.
Jasper Lewis as Doris Morgan: Lewis is best known forV/H/SandThe Impersonators.
Carlo Mendez as Hector Estrada: Mendez is best known forParks and RecreationandDemise.
Michael C. Hall as Dexter Morgan’s Dark Passenger / Narrator: Hall is best known forSix Feet Under,Dexter, andDexter: Original Sin.
Dexter: Original Sin
Cast
Dexter: Original Sin explores Dexter Morgan’s early years in 1991 Miami as he transitions from student to avenging serial killer. Guided by his father, Harry, Dexter crafts a moral code and navigates a forensics internship at Miami Metro Police, all while controlling his darker impulses.
