Criminal Minds was one of the most-watched drama series in the world before it ended after 15 seasons in 2020 - and now it's set to return to screens once again with a brand new revival series on Paramount+.
MORE: Could NCIS star Pauley Perrette be returning for season 20?
However, fans will be disheartened to hear that while many of the original cast members have confirmed that they are returning, Matthew Gray Gubler is not among them. So why is he not taking part in the show? Find out here…
WATCH: Dr Spencer Reid was a Criminal Minds favorite among fans of the show
The actor, who played fan favorite Dr Spencer Reid in almost every single one of the mystery crime drama's 324 episodes, has yet to speak out about the project, and so it is unclear why he wasn't unable to take part in the revival.
MORE: Chicago Fire, The Rookie and Grey's Anatomy: What shows have the networks renewed or canceled?
MORE: Chicago Fire fans predict major pregnancy storyline in season 11
However, his lack of involvement could very much be due to scheduling conflicts. Up until earlier this year, Matthew was a cast member on the comedy series Dollface which got a surprise cancellation after two seasons back in May. Had the show not been cancelled, Matthew may have considered himself too busy to appear on both and so turned down the opportunity to return to Criminal Minds.
Many of the original cast members have confirmed that they will appear in the revival
Although according to his IMDb page, he isn't currently working on any new shows or movies, that doesn't necessarily mean that he doesn't have other projects on the horizon that may have also factored into his decision.
Fans are certainly disappointed by the news and have been sharing their thoughts on a Spencer-less reunion on Twitter. One said: "Didn't know they were even reviving Criminal Minds but what's the point without Reid?!?" while another complained: "It's not Criminal Minds without Matthew Gray Gubler."
© Photo: Getty ImagesMatthew has yet to speak out on his decision not to return to the series
Matthew isn't the only cast member not returning to BAU; Daniel Henney, who played Matt Simmons in the final few seasons of the show, has also not signed a contract to appear in the upcoming ten-episode revival series.
MORE: Law & Order has major crossover episode with spinoff shows planned - and fans will be thrilled
Those confirmed to appear include Joe Mantegna, Kirsten Vangsness, Adam Rodriguez, A.J. Cook, Aisha Tyler and Paget Brewster, and long-time showrunner Erica Messer is also on board.
Joe, who will be returning as FBI Agent David Ross, teased a first look at the show on Tuesday with a picture of himself on a partially built set. "Just doing a little inspection today for an upcoming project. #criminalminds," he wrote.
Read more HELLO! US stories here
Like this story? Sign up to our What to Watch newsletter to get other stories like this delivered straight to your inbox.
