Dexter ‘s very own Michael C. Hall returns as the narrator of young Dexter Morgan’s (Patrick Gibson) inner voice in the franchise’s prequel series.

Dexter: Original Sin Cast Patrick Gibson Plays Young Dexter The role of young Dexter went to The OA star Patrick Gibson, and he takes over the part originally played by Michael C. Hall.

Child actor Eli Sherman, who portrays young Dexter, and Xander Matero, who portrays Brian Moser, are the only two characters who have appeared in Original Sin to return in Resurrection so far.

WARNING! This article contains SPOILERS for Dexter: Original Sin season 1, episode 4! As young Dexter finally begins to implement the Code of Harry, Dexter: Original Sin revives a major aspect of ...