Here’s the extended trailer for Season 4 of Dexter that premiered at Comic-Con ’09 last week

Below is the trailer for season four of Showtime’s Dexter that screened at Comic-Con last week. It was posted on THRFeed.

The new season of Dexter begins on September 27, 2009, and, as most fans already know, John Lithgow will play a serial killer named Walter Simmons. Lithgow’s character is described as an unassuming, mild-mannered suburbanite who has been living a dual life as one of America’s most prolific and deadliest serial killers. Dubbed the “Trinity Killer” because of his proclivity to kill in three’s. He relocates to Miami after being tracked by F.B.I. Special Agent Frank Lundy (Keith Carradine).