Dexter Revival Is Bringing Back John Lithgow as the Trinity Killer
https://www.ign.com/articles/dexter-revival-showtime-bringing-back-john-lithgow-trinity-killer
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Showtime is bringing back one of Dexter Morgan's biggest foes. John Lithgow is set to reprise his role as Arthur Mitchell, aka the Trinity Killer, in the network's upcoming revival of Dexter, as reported by Deadline.
While there are few known details about Lithgow's role in the Dexter revival, it is reported that the actor is only expected to film for about a day or so on the production. Showrunner Clyde Phillips and the series' team of writers have figured out a way for the Trinity Killer to return in a way that makes sense within Dexter's storyline.
Of course, the prospect of Arthur Mitchell returning to the series is a tricky one. The Trinity Killer bit the bullet in the Season 4 finale when Michael C. Hall's Dexter took a hammer to him. While Lithgow's tenure on Dexter only lasted for a season, the actor instantly became a fan favorite among the show's audience.