It's almost time for Foundation to return for season 3, with fans set to face a 152-year time jump after the end of season 2.

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The Apple TV+ sci-fi epic, based on Isaac Asimov's iconic novels, will see an entirely new era this season, with new cast member Game of Thrones star Pilou Asbæk reintroducing us to long-awaited warlord the Mule, who threatens the precarious peace between the Cleonic dynasty and the Foundation.

Season 3's release has been a long time coming for fans, who waited for news a long time after season 2's release in 2023.

Check out everything you need to know about the upcoming, and long awaited, release of Foundation season 3!

Foundation season 3 release date

Foundation season 3 will premiere on Apple TV+ on Friday 11th July 2025, with episodes due to drop weekly until the finale on 12th September.

The new episodes come almost exactly two years after the previous batch, marking a slightly longer production cycle than usual, owing partly to the 2023 Hollywood strikes and reported budgetary concerns (via The Hollywood Reporter).

The latter issue actually caused series co-creator David S Goyer to step down as showrunner, with producer Bill Bost taking his place as filming resumed in Prague, Czechia, from February 2024.

Hopefully, the behind-the-scenes issues won't stunt Foundation's chances of another renewal, with plenty more material in Isaac Asimov's legendary sci-fi novels to mine from.

Jared Harris stars in Foundation season 3. His character is leaning against a stone pillar in a dark, shadowy environment
Jared Harris stars in Foundation season 3. Apple TV+

In December 2023, at the time of the show's renewal, Apple TV+ head of programming Matt Cherniss said: "We have all been incredibly impressed with the ambitious, action-packed and imaginative adaptation that David and the rest of this gifted creative team and cast have brought to life with this premium sci-fi series from day one.

"To watch Foundation become such a global hit has been beyond exciting with audiences around the world continuing to be captivated week after week by this dramatic and compelling journey to save humanity.

"We can't wait for everyone to experience what is in store for characters old and new in season 3."

Foundation season 3 cast: Who will return?

Lee Pace and Jared Harris will reprise their roles as Brother Day and Hari Seldon in Foundation season 3, leading an ensemble cast including a number of new additions.

Joining the saga amid the show's 152-year time jump are Succession alum Cherry Jones as Foundation Ambassador Quent, Cody Fern (American Horror Story) as Toran Mallow and Brandon P Bell (Dear White People) as Han Pritcher, among others.

Pilou Asbæk as The Mule in Foundation season 3, wearing an armoured suit with goggles and standing in a leafy, misty outdoor area
Pilou Asbæk as the Mule in Foundation season 3. Apple TV+

There has also been one notable recast in the form of Game of Thrones star Pilou Asbæk, who is taking over the role of the Mule from Sex Education's Mikael Persbrandt, who appeared in four episodes of the second season.

In review, here's the confirmed cast list for Foundation season 3 so far:

  • Lee Pace as Brother Day
  • Jared Harris as Hariton 'Hari' Seldon
  • Lou Llobell as Gaal Dornick
  • Leah Harvey as Salvor Hardin
  • Laura Birn as Demerzel
  • Terrence Mann as Brother Dusk
  • Cassian Bilton as Brother Dawn
  • Alexander Siddig as Dr Ebling Mis
  • Troy Kotsur as Preem Palver
  • Pilou Asbæk as the Mule (taking over from Mikael Persbrandt)
  • Cherry Jones as Foundation Ambassador Quent
  • Synnøve Karlsen as Bayta Mallow
  • Cody Fern as Toran Mallow
  • Brandon P Bell as Han Pritcher
  • Tómas Lemarquis as Magnifico Giganticus
  • Yootha Wong-Loi-Sing as Song
  • Leo Bill as Mayor Indbur

Foundation season 3 plot

The official synopsis for Foundation season 3, courtesy of Apple TV+, reveals that the episodes take place a full 152 years after the events of the second chapter.

It reads: "The Foundation has become increasingly established far beyond its humble beginnings while the Cleonic Dynasty's Empire has dwindled.

Lou Llobell as Gaal Dornick in Foundation season 3, staring intensely at the camera against an industrial-looking wall
Lou Llobell as Gaal Dornick in Foundation season 3. Apple TV+

"As both of these galactic powers forge an uneasy alliance, a threat to the entire galaxy appears in the fearsome form of a warlord known as 'the Mule', whose sights are set on ruling the universe by use of physical and military force, as well as mind control."

The blurb concludes: "It's anyone's guess who will win, who will lose, who will live, and who will die as Hari Seldon, Gaal Dornick, the Cleons, and Demerzel play a potentially deadly game of intergalactic chess."

At the time of the show's renewal for a third season, showrunner David S Goyer said he was "thrilled" to continue his ambitious adaptation of Isaac Asimov's "pioneering" novels.

He added: "This time, the stakes for Foundation and Empire are even higher as the Mule takes centre stage, along with fan favourites Bayta, Toran, Ebling and Magnifico Giganticus."

Foundation season 3 trailer

The latest trailer for Foundation season 3 can be seen below:

Foundation is available to stream on Apple TV+. Sign-up for Apple TV+ for £6.99.

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Check out more of our Sci-Fi coverage or visit our TV Guide and Streaming Guide to find out what's on. For more from the biggest stars in TV, listen to The Radio Times Podcast.

Authors

David CraigSenior Drama Writer

David Craig is the Senior Drama Writer for Radio Times, covering the latest and greatest scripted drama and comedy across television and streaming. Previously, he worked at Starburst Magazine, presented The Winter King Podcast for ITVX and studied Journalism at the University of Sheffield.

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