Dexter: Original Sin will air on Paramount + with Showtime in December 2024, and it'll star Patrick Gibson and Christian Slater as Dexter and Harry Morgan, respectively. Michael Lehmann will also direct several episodes of the prequel series, and this has led to fans linking the origins of a key collaboration back to a classic 1980s movie. Lehmann directed the 1988 thriller, Heathers, which starred Christian Slater as teenage killer, Jason 'J.D.' Dean.