This guide explains who plays Harrison in Dexter across the series, clarifying characters and actors for viewers confused by the multiple uses of the name. In the original series, Harrison Matthews is the son of Dexter Morgan and Rita Bennett. In the revival series, Harrison Morgan is the son of Dexter and Rita, later raised by Dexter and Hannah McKay. We detail the actors, story context, and how the role connects across timelines to help you keep this family relationship clear.
