Dexter: Season 4 (2009)


Season 4

Critics Consensus

The inherent comedy of Miami's favorite psychopath contending with domestic bliss and the unspeakable horror of John Lithgow's Trinity killer coalesce into one of Dexter's most sensational seasons.



Critic Ratings: 32


Audience Score

User Ratings: 778
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Air date: Sep 27, 2009
Air date: Oct 4, 2009
Air date: Oct 11, 2009
Air date: Oct 18, 2009
Air date: Oct 25, 2009
Air date: Nov 1, 2009
Air date: Nov 8, 2009
Air date: Nov 15, 2009
Air date: Nov 22, 2009
Air date: Nov 29, 2009
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Dexter: Season 4 Photos

Tv Season Info

John Lithgow joins the cast as Arthur Mitchell in series 4, which centers around the search for the Trinity Killer. Along the way, Dexter (Michael C. Hall) mishandles crucial evidence in a case, Deb (Jennifer Carpenter) takes the blame for an unforeseen event, and Rita (Julie Benz) discovers one of Dexter's secrets. Other familiar faces in the fourth season include Keith Carradine, Desmond Harrington, Lauren Velez and David Zayas.

Critic Reviews for Dexter Season 4

All Critics (32) | Top Critics (14)

There's a rote quality to his kills at this point, as if we're just marking time until his path crosses with Trinity's.

Jan 8, 2019 | Full Review…

The clever creative team at Showtime keeps us salivating for the next episode.

Jan 8, 2019 | Full Review…

Like all good drama, it uses heightened characters to magnify struggles we all have.

Jan 8, 2019 | Full Review…

Thankfully, this season Dexter continues to play with our moral bearings, which is the show's best quality.

Sep 27, 2009 | Full Review…

Highly entertaining television.

Sep 27, 2009 | Rating: 4/5 | Full Review…

Bravo to the cast and writers. Michael C. Hall always gets his deserved praise. And if John Lithgow doesn't walk away with next year's Emmy it'll be an honest to god upset.

Jan 8, 2019 | Full Review…

There's little to say at this point about Michael C. Hall's performance, but the brilliance lies in how viewers can never truly understand the man he portrays. That's the idea, of course.

Jan 8, 2019 | Rating: 4.8/5 | Full Review…

A master class in dramatic TV, from beginning to end.

Jan 8, 2019 | Full Review…

Dexter has to consistently deliver such a strong story that viewers will not stray during the long breaks between seasons... and deliver, it has.

Jan 8, 2019 | Full Review…

This is a classic good-news-bad-news situation. The good news is that we get to see the excellent John Lithgow play a serial killer. The bad news is that so far he mostly does it naked.

Jan 8, 2019 | Full Review…

Audience Reviews for Dexter: Season 4

  • Aug 06, 2019
    Making an immediate impression with John Lithgow arriving on the scene in horrific fashion, Season 4 of 'Dexter' escalated the series in several ways and ended on one of it's most dramatic and sad notes.
  • Jul 09, 2019
    this season rises above all others and finds its place as top tier the best season of the whole show with the greatest rivalry and the saddest tragedy
  • Apr 28, 2019
    The best season of Dexter!
  • Feb 20, 2019
    super beastly season. the only major downside was the abundance of relationship drama that i didn't care about. otherwise it's 4.5 quality (about 3 viewings) SPOILERS i want to edit the season and remove every batista-laguerta relationship scene. they sucked. and what made it even worse was that i really liked his relationship with giana but i'm guessing there was some conflict where the actress was no longer available. and my continued dislike of the anton romance
  • Jan 25, 2019
    Season 4 of Dexter is a complete gem in the series. Dexter’s character is further developed in a beautiful way and his relationships throughout the season create major drama. The villain, Trinity Killer, is a wonderful blend of disturbing and mysterious. They did a wonderful job of showing his face and following his life throughout the entire season. My only reason this season was not a 5 star is due to Rita’s unbelievable annoyance from start to finish. Her character was calm, sweet, and understanding in the first 3 seasons. Then, out of nowhere, she becomes controlling and untrusting. Excellent season, but I could have done without Rita’s out-of-the-blue character change.
  • Oct 22, 2018
    One of the best seasons of TV I've ever seen and definitely the best Dexter season, breath taking performances all round, it's very exciting
  • Mar 06, 2018
    My favourite season of Dexter so far. The balance of his home life/work/serial killer is on perfect display and with a worthy adversary this time we get a classic season of Dexter. The show should probably have ended after this season as it would never feel this fresh again.
  • Jan 28, 2018
    Trinity (Lithgow) was by far the best nemesis in the series. Incredible season.
  • Jan 28, 2018
    This season is not as good as 1 and 2 but it's better than season 3with a old killer that dexter hunts it's a great season 9/10
  • Jan 04, 2018
    Oh dear, a twist ending of the season.

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