What is the name of Dexter's stepmother, Harry's wife?

Doris Morgan is Dexter Morgan's stepmother and Harry Morgan's wife. She is part of Dexter's family history, although the television series reveals relatively little about her directly.

Harry Morgan was a Miami police officer who adopted Dexter after finding him traumatized at a crime scene. Harry and Doris were already married, making Doris Dexter's stepmother rather than his biological mother. Harry later became the parent who shaped Dexter's unusual moral code, teaching him to target killers who had escaped justice.

Doris is easy to confuse with other important women in Dexter's life. Rita Bennett is Dexter's girlfriend and later wife, while Debra Morgan is Harry's biological daughter and Dexter's adoptive sister. Laura Moser is Dexter's biological mother, not his stepmother. Doris's limited screen presence means the character is sometimes overlooked, but the family relationship itself is clear in the show's backstory.