Original Sin charts Dexter's early years, but it also features his brother, and the future Ice Truck Killer, which could lead to a future spin-off.

A working actor with a celebrity sibling, Carlo Mendez scores with a chilling portrait of a cartel boss in the Paramount+ prequel series, “Dexter: Original Sin.”

The eighth episode of Paramount+ with Showtime’s crime drama series ‘Dexter: Original Sin,’ titled ‘Business and Pleasure,’ revolves around Dexter Morgan’s realization that Captain Aaron Spencer is the killer of Jimmy Powell and the kidnapper of the cop’s own son,

Original Sin continues to expand on Dexter's lore and how he became a serial killer. Dexter's universe is gradually expanding with many spin-offs, with Dexter: Resurrection on the way. In addition, a spin-off revolving around the Trinity Killer's origin story is also in the works.

Young Dexter Morgan will experience a “defining moment” during the season finale of Dexter: Original Sin, teases Patrick Gibson, adding that “something will shape him into the Dexter that fans know.” The Irish actor plays the titular character in the prequel series.