Season One
Big Bad
The Ice Truck Killer
Little Bad(s)
Carlos Guerrero
Jeremy Downs
Detective McNamara
Neil Perry
Paul Bennett
Air Dates
Premiere: 1 October 2006
Finale: 17 December 2006
DVD: See:Dexter DVDs
Blu-ray: See:Dexter DVDs
Guest Star(s)
Christian Camargo as Brian Moser

Season One consists of the first twelve episodes of the Showtime series DEXTER. The season originally aired in 2006.

Season One was the only season to be almost directly related to the novels, specifically Darkly Dreaming Dexter. Subsequent seasons featured original storylines.


The pilot episode "Dexter" attracted more than a million viewers, giving the channel its highest ratings in nearly two years, while the finale "Born Free" drew an audience of 1.1 million viewers in the U.S. On average, the season was watched by two million viewers per episode during its original run when factoring in DVR viewers.


The show's first season received generally favorable reviews from critics.

It was praised as "bold, different and exciting, with a central character and performance that take your breath away" by the New York Daily News.

The Wall Street Journal saw "the grotesqueries of Dexter" as "not something that can easily be dismissed with the old "'you don't 'have to watch' line" and concluded that, "We do have to live among the viewers who will be desensitized, or aroused, by this show."

The aggregate site Metacritic scored the show's first season at 77 out of 100 based on 27 critics reviews.


The main antagonist in Season One is The Ice Truck Killer who leaves clues at crime scenes that have personal relevance to Dexter Morgan.

Meanwhile, Dexter is romantically involved with Rita Bennett, a single mother whose abusive soon-to-be ex-husband, Paul Bennett, is released from prison on parole. While Bennett is good to their children, he repeatedly — but unsuccessfully — attempts to get back with Rita. After Paul threatens him, Dexter knocks him out with a frying pan, and sets him up to look like he violated his parole by using heroin. While back in prison, Bennett insists that Dexter framed him and tells Rita to look for his missing shoe, but she ignores him.

Debra Morgan begins to date a prosthetics doctor named Rudy Cooper — who is secretly The Ice Truck Killer. After he proposes to her, Cooper kidnaps Debra and lures Dexter to the house where he is holding her. Cooper is revealed to be Brian Moser, Dexter's long-lost brother. As children, they witnessed their mother's brutal murder at the hands of drug dealers, who then left them in a shipping container for two days, sitting in a pool of blood. Brian reveals that he spent his childhood in an institution. Brian then brings Dexter to a unconscious Debra, intent that the two of them will kill her together to cement their bond and sever Dexter's ties to his adoptive family. Dexter hesitates, unable to kill Debra, which angers Brian. Dexter struggles with Brian to stop him from killing Debra. Moments later, the police arrive and Brian escapes.

After luring Brian into a trap in his apartment, Dexter drugs him, and takes him to Brian's residence. He kills Brian there, making it look like a suicide. Everyone, including Debra, remains unaware that they are brothers. Dexter feels some regret over killing his brother, the one person who fully understood him, in order to save Debra, whom he feels would reject him if she ever learned of his true nature.

For more info, see:

Main Cast

  1. Michael C. Hall as Dexter Morgan
  2. David Zayas as Angel Batista
  3. Julie Benz as Rita Bennett
  4. Erik King as James Doakes
  5. Lauren Velez as Maria LaGuerta
  6. Jennifer Carpenter as Debra Morgan
  7. James Remar as Harry Morgan

Recurring Cast

Guest Cast

Dexter's Victims



Dexter premiered on October 1st, 2006 with the episode of the self title Dexter. The season set up the usual 12 episode format of one hour running time. This is normal considering most half-hour shows run about 24 episodes a season.


Seasons of Dexter
Season 1
Season 2
Season 3
Season 4
Season 5
Season 6
Season 7
Season 8
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