Dexter Morgan is the protagonist of both the DEXTER television series and the Dexter Book Series. He's introduced as a Serial killer and later, a blood spatter analyst for the Miami Metro Police Department. He has an adoptive sister by the name of Debra Morgan and learns later on that he has a biological brother by the name of Brian Moser. His adoptive parents are Harry and Doris Morgan, unfortunately both have passed away prior to the events of this season. He is the biological father of Harrison Morgan, whom he had with the now deceased Rita Morgan and is caring for him as a single father.