A Deadly Game of Intergalactic Chess in Foundation Season 3

Apple TV+ has released the official trailer for Foundation season 3, its high-production, spectacle-driven take on the science-fiction novels by Isaac Asimov. The series, which has long since diverged from Asimov’s original works in a number of key ways, is a space opera that spans the centuries, with massive time-jumps dictating the structure of each season.

In season 1, viewers were treated to a rapid introduction to Asimov’s lore as the story jumped 138 years between its first and second halves. Season 2, which wrapped up last year, is centered around the Second Crisis of the Foundation, including the specter of an all-out war between the rising Foundation and the Galactic Empire. The Foundation has taken a more insidious turn, weaponizing religion and indoctrination to colonize the galaxy and make more powerful enemies, and viewers were introduced to the “Mentalics” colony of psionically gifted humans.

Season 3 will skip forward again, 152 years this time, setting the stage for what is in Asimov’s universe known as the Third Crisis. Apple TV+’s official description also offers some new details on the setting: “Foundation has grown much stronger than it once was and has become more firmly established. Meanwhile, the once-great Cleonic Dynasty is in its waning years. Facing threats from the inside and out, these two powers will be forced to join together against an enemy with the power to change everything: the Mule, a fearsome warlord with a lethal military might and the ability to bend the wills of others to his desires.”

Asimov’s The Mule has been one of the Foundation books most changed by this live-action series so far. The third season’s villain is introduced in the trailer with a voiceover from Hari Seldon (Jared Harris) ominously saying, “Centuries ago, when we predicted the fall of the galaxy, the Foundation was created to save humanity. But the coming darkness was always the turning point.” Gaal Dornick (Lou Llobell), who has had an increasingly large role to play in Foundation, sounds the alarm: “We’re out of time.”

The trailer for season 3, which stars Pilou Asbæk as the eponymous Mule, reveals that the warlord can drive people to abandon their logical conclusions and act in radically illogical, even dangerous ways. The Mule’s disturbing powers are summarized simply: “I can turn enemies into allies. Hate into love. It only takes a little nudge.”

Blasting through cityscapes and sci-fi set-pieces, the trailer offers explosions, starship battles, and the total collapse of civilization. The man with the plans, or at least those who carry out those plans, is led by the same three characters: Lee Pace, Cassian Bilton, and Terrence Mann return as the cloned imperial Brothers Day, Dawn, and Dusk, respectively. Jared Harris is back as Hari Seldon, and, in perhaps the most surprising of returns, Lou Llobell is back as Gaal Dornick, along with Laura Birn as the omnipotent robot leader, Eto Demerzel.

Season 3 sees quite a few more new additions to the cast as well. Alexander Siddig joins the cast as the fervent disciple and self-taught psychohistorian Dr. Ebling Mis, who is played by Jared Harris in the books; Troy Kotsur plays the leader of an entire planet of psychics, Preem Palver; and Cherry Jones joins as Foundation ambassador Quent. The rest of the additions include Brandon P. Bell as Han Pritcher, Synnøve Karlsen as Bayta Mallow, Cody Fern as Toran Mallow, Tómas Lemarquis as Magnifico Giganticus, Yootha Wong-Loi-Sing as Song, and Leo Bill as Mayor Indbur.

The Empire, the Foundation, and the Mule

Foundation as a series has been a little different from the source material since day one. But at the heart of both are always the precepts of “psychohistory,” Asimov’s fictionalized science of using mathematical models and sociology to predict the general trends of human behavior. There have been some clear critiques of psychohistory’s internal logic as the series’ world-building has grown more complex. But the Mule represents a destabilizing force that puts that model to the test. The warlord has a kind of game-changing power that undermines the science the series is based in the first place.

Emotionally, the stakes of the third season appear just as high as before. Every battle, cut-scene, and space battle in the trailer is rooted in an emotional center. From the weight of Dornick’s line about running out of time to Seldon’s dying words, the seasons have always carried an emotional heft to them. Can the Empire and the Foundation unite to battle the Mule? Will psychohistory as a model survive in the face of an adversary with the power to shift people’s emotional responses? Is there any future, in any timeline, that does not end in the galaxy’s ruin?

If Asimov’s Foundation began a multi-season-long chess match between Hari Seldon’s carefully laid plans, then season 3 appears poised to see if the game will survive when the Mule has the power to clear the board. The battle of wills, the fight to preserve the galaxy, and the larger question of humanity’s place in the universe all appear to culminate in a final season with some of the biggest set-pieces and cast members yet.

Season 3 of Foundation drops on Apple TV+ on July 11, 2025, with new episodes coming every week until September 12.