The Original Series The show starred Michael C. Hall as Dexter Morgan, a genius and socially awkward forensic analyst who uses his skills to hunt down and kill those who have escaped justice. The series also starred Jennifer Carpenter as Debra Morgan, Dexter’s adoptive sister and a Miami-Dade police officer; James Remar as Harry Morgan, Dexter’s adoptive father; and David Zayas as Angel Batista, a detective with the Miami-Dade Police Department.