The "Dexter" cast is blessed to be on one of Showtime's hottest hits ever. "Dexter" is a drama for the most part. There is black comedy sprinkled throughout. The show's premise is that a medical examiner in Dade County is actually a serial murderer. However, he's not even your typical serial murderer. He has to follow a code of conduct instilled in him by his foster father, Harry. The code is a sort on Robin Hood effect, whereby he kills loathsome people who, in his estimation, "need to be put down like a rabid dog."

  1. Dexter Morgan (Michael C. Hall) Dexter is a brilliant characterization, and Hall is blessed to have the part. He does an excellent job in the role. Dexter's specialization is blood spattering analysis. How the blood flies and lands can tell the forensics team a great deal about the specifics of a murder.

  2. Debra Morgan (Jennifer Carpenter) Dexter's sister, Debra, is climbing through the precinct hierarchy as a detective. It's Dexter's greatest fear that she will find out the truth about him.

  3. Lt. Maria Laguerta (Lauren Velez) Dexter's immediate superior, Maria, is a shrewd, intelligent, beautiful woman. When the show started, she hit on Dexter repeatedly, to his great discomfort. She also made no secret of her dislike of Deb. Both those behaviors disappeared before the first season was over.

  4. Sgt. Angel Batista (David Zayas) Maria's husband is also a detective in their squad. Angel made a death bed promise to his father that he would only ever speak the truth. The Zayas marriage flounders for a time, but they do wind up back together again.

  5. Harry Morgan (James Remar) Dexter's dad is deceased. When Dexter was little, he and his brother witnessed the horrific murder of their mother. Harry found the boys much later, and Dexter is left to wonder if he was a serial killer before his psyche was warped forever. Dexter often talks to his dead father, who acts as the voice of his conscience.

As seasons pass and storylines come and go, the "Dexter" cast continues to be built around the five actors listed above. Every season has a new arch villain, with Arthur Mitchell (John Lithgow) being touted as one of the most chilling characters ever seen on the small screen.

- Bobbi Esping