[This story contains spoilers from the first five episodes of Dexter: Original Sin.]

Dexter: Original Sin season 1 brings back several major characters from the main series, but one significant figure's absence doesn't make sense.

Original Sin continues to unravel the formative years of Dexter Morgan as he learns to navigate his hunger for blood and kill with his adoptive father, Harry.

A kill goes wrong, and Harry grounds Dexter in a new episode of "Dexter: Original Sin" on Sunday, Jan. 5, at 10 p.m. ET on Showtime.

Dexter: Original Sin reaches the halfway mark of its first season, and the young killer has some cleaning up to do after a botched kill.

Paramount+ with SHOWTIME then you can actually tune in at midnight ET on Fridays to catch the new episode. However, if you're an old school Showtime cable subscriber, then you can tune in on Sunday nights at 10pm ET/PT.

James Remar played Harry Morgan in the original Dexter series, but Christian Slater has made the role his own in Original Sin, and it's the first time the audience has seen the action through his eyes, in addition to Dexter's, and that is most definitely a good thing.

The Dexter saga is expanding with two thrilling series: the current hit, Dexter: Original Sin, and the much-anticipated sequel Dexter: Resurrection. Fans are eagerly waiting to see their favorite characters return to the screen.