Get Ready for The Mule: Foundation Season 3 Is Coming

On Sunday, Apple TV+ released the first teaser trailer for the third season of its Emmy-nominated series, Foundation. Set to premiere on July 11, 2025, with weekly episode releases to follow through September 12, the official trailer for Season 3 of the high-budget, visually striking adaptation of Isaac Asimov’s landmark science fiction epic teases a galaxy on the edge of a knife, a new crisis of truly galactic proportions, and the introduction of one of Asimov’s most mysterious, powerful, and threatening villains to date, the Mule.

A show that has taken many liberties with its namesake source material, Foundation has unfolded like a story told across centuries, with massive time jumps defining the structure of the series as a whole. Season 1 ended with a massive 138-year time leap into the future, while Season 2 opened on the Foundation and the Galactic Empire, which ruled a crumbling and ailing galaxy on the verge of a major turning point. Season 2 was anchored around the Second Crisis, which involved both the Foundation’s radical move to weaponize religious propaganda to grow its power base and a potentially galactic-scale war between the Foundation and the Galactic Empire. New characters introduced included the “Mentalics” of Terminus, a secret colony of people with powerful psionic abilities.

Foundation Season 3 is an even bigger leap forward in time, with the trailer revealing that the story begins 152 years after the events of the previous season and takes place during a period known in the lore of Asimov’s Foundation series as the Third Crisis. According to an official synopsis from Apple TV+, “Decades after the Foundation was established on a remote world, it has grown far more deeply rooted and influential than in its earliest years. The mighty Cleonic Dynasty, which has long since replaced the crumbling Galactic Empire, is showing the first signs of age and decay. Cornered on all sides by enemies both internal and external, the two powers now have no choice but to unite against a threat to both of them—and to all of civilization—that could destroy everything: the emergence of a man unlike any other.”

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In the new teaser trailer, an ominous Hari Seldon (Jared Harris) sets the tone by narrating a somber observation: “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.” Next is Gaal Dornick (Lou Llobell), who has grown considerably in prominence over the previous two seasons, with an urgent warning: “We’re out of time.”

Played by Pilou Asbæk, this new villain, The Mule, is no ordinary foe. He has a seemingly disturbing power to influence, control, and weaponize human emotion, thought, and feelings of belonging. “I can turn enemies into allies. Hate into love,” The Mule states with a dark matter-of-fact. “It only takes a little nudge.”

Impressively varied action sequences are on display, too. Explosions and battles abound, and the trailer features a massive city in the act of falling. The trailer has set the stage for this new antagonist to bring his particular brand of powerful violence to the story, in the form of a militaristic, battle-hardened warlord who combines overwhelming firepower with the kind of more psychologically terrifying power that is more supernatural and hard-to-predict.

Joining Lee Pace, Cassian Bilton, and Terrence Mann to reprise their roles as the three imperial clones, Brother Day, Brother Dawn, and Brother Dusk, are other series regulars such as Harris as the brilliant mathematician, Hari Seldon; Llobell as Gaal Dornick; and Laura Birn as the powerful, enigmatic humanoid robot, Eto Demerzel.

Season 3 of Foundation also adds a very strong cast, with Alexander Siddig, Troy Kotsur, Cherry Jones, and Brandon P. Bell is among the new characters introduced in Season 3. Siddig will play Dr. Ebling Mis, a fan of Hari Seldon’s work and a self-taught psychohistorian. Kotsur will be Preem Palver, who rules over an entire planet of psychics, while Jones will be Foundation ambassador Quent. Bell, meanwhile, will be Han Pritcher. Synnøve Karlsen as Bayta Mallow, and Cody Fern as Toran Mallow; Tómas Lemarquis as the flamboyant Magnifico Giganticus; Yootha Wong-Loi-Sing as Song; and Leo Bill as Mayor Indbur complete the new cast.

Asimov’s Psychohistory is Threatened

Foundation has always centered around Asimov’s concept of “psychohistory,” a fictionalized scientific discipline that uses both mathematics and sociology to predict the macroscopic broad patterns of large-scale historical events. But this season, even that paradigm may be under direct threat. If The Mule’s powers can short-circuit logic and its brand of targeted violence can make people react and think in unpredictable ways, is the battle to come even one of probabilities?

The trailer is incredibly fun from a visual standpoint. Sweeping space vistas, stunning world-building, and immense, high-stakes action moments are all signature pieces of what the series is about, as has been seen so far. But most of all, what resonates and lingers after the first watch of the teaser trailer is the almost emotional weight of the impending conflict. Can the Empire and the Foundation be unified in the same way? Can psychohistory itself survive in the face of the Mule’s assault on logic itself? And is there any potential future of the galaxy where chaos and disorder are not the winning team?

Season 3 of Foundation looks set to explore these and other lingering questions about Seldon’s future with even higher stakes, nuanced characters, and larger-than-life world-building. With the first of its weekly episode releases slated to debut on July 11, 2025, fans of both big-budget speculative fiction and big-budget TV shows in general have a lot to look forward to.

After two seasons of building the pieces of the Seldon Plan on the large-scale canvas of an entire galaxy, season 3 of Foundation promises to see if that plan will hold up in the face of the impossible. The arrival of the Mule may not just threaten the peace of the galaxy but the very idea that humanity’s future can be understood and predicted at all.