Where Fans Can Find Brian Moser's Incredible Actors . Xander Mateo is a young actor who is just starting his career. Aside from the seven episodes of Dexter: Original Sin, Mateo hasn't been in much.

Videos by ComicBook.com ... Brian Moser is the last thing we see at the end of Dexter: Original Sin, possibly planting the seed for him to return in season 2 or beyond of the prequel series.

Not that Brian Moser was ever considered to be Harry's son. In fact, that's the whole problem here, as the detective soon discovers after stumbling across Brian's records in Dr. Petrie's boxes of ...

Dexter: Original Sin season 1, episode 8 had another shocking revelation about Brian Moser, and all of its intense developments need to be examined.

5. Ending The Ice Truck Killer Story The Ice Truck Killer/Brian Moser storyline in Season 1 remains one of my favourite parts of the entire overarching Dexter storyline.