TV Dexter: Original Sin Dexter: Original Sin 8.188/10 by 340 users In 1991 Miami, Dexter Morgan transitions from student to avenging serial killer. When his bloodthirsty urges can't be ignored any longer, Dexter must learn to channel his inner darkness. With the guidance of his father, Harry, he adopts a Code designed to help him find and kill people who deserve to be eliminated from society without getting on law enforcements' radar. This is a particular challenge for young Dexter as he begins a forensics internship at the Miami Metro Police Department. Details Casts Posters Images Title Dexter: Original Sin Alternative Titles Dexter: Origins, Dexter Original Sin First Air Date 2024-12-15 Last Air Date 2025-02-16 Number of Episodes 10 Number of Seasons 1 Genres Crime, Drama, Mystery, Networks Paramount+ with Showtime, Casts Patrick Gibson, Christian Slater, Molly Brown, James Martinez, Christina Milian, Alex Shimizu, Reno Wilson, Patrick Dempsey, Michael C. Hall Plot Keywords , Dexter Morgan Patrick Gibson Harry Morgan Christian Slater Debra Morgan Molly Brown Angel Batista James Martinez Maria LaGuerta Christina Milian Vince Masuka Alex Shimizu Bobby Watt Reno Wilson Aaron Spencer Patrick Dempsey Dexter's Inner Voice (voice) Michael C. Hall