Meet the Mule: Foundation’s Most Dangerous Villain Yet

The official trailer for season 3 of Apple TV+’s Foundation, a high-budget, visual-effects-laden adaptation of Isaac Asimov’s sprawling science-fiction series of the same name, has been unveiled by the streamer. The trailer promises a galaxy on the edge, a crisis on an unprecedented scale, and the rise of one of Asimov’s most complex and formidable antagonists: The Mule. Scheduled for a July 11, 2025, premiere, followed by weekly episodes through September 12, 2025.

The show, which does not shy away from taking significant creative liberties with the original material, continues to be structured around massive leaps through time. The first season concluded with a 138-year jump forward. The second season, however, mainly followed a major inflection point in Asimov’s Foundation universe: The Second Crisis. This period saw the potential for a large-scale war between the Foundation and the power it had been set to challenge for so long: The Galactic Empire. The Foundation, for its part, took a dark turn of its own, weaponizing its influence by spreading religious propaganda through space. At the same time, a mysterious colony of “Mentalics” emerged, individuals with extraordinary psionic abilities.

Season 3 of Foundation, by contrast, does not so much as jump forward as teleport into the future: 152 years after the events of season 2. While the show had a habit of skipping over years to address major crises at a galactic scale, the 152-year time jump puts season 3 squarely in the category of Asimov’s literature as the Third Crisis. Per an official synopsis from Apple TV+, the Foundation has grown in both influence and might in the century and a half since its inception, while the Cleonic Dynasty is “finally starting to show cracks.” The two powers, which have been pitted against each other for generations, now face extinction from within and without. This has forced them into an uneasy alliance against an adversary who could spell the end of everything: A warlord who is not only a military juggernaut but also a terrifying figure with the ability to alter the minds of others with psionic prowess. In the trailer, Foundation mainstay Hari Seldon (Jared Harris) is the first to speak, offering the grizzled insight befitting a man who has been called the “Mahatma Gandhi of physics”: “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.” His successor, Gaal Dornick (Lou Llobell), then picks up the thread with an ominous rallying cry: “We’re out of time.”

This new menace is The Mule, portrayed by Pilou Asbæk, and his moniker is no misnomer: This is a villain with an ability that borders on the psychological. “I can turn enemies into allies. Hate into love,” he calmly intones. “It only takes a little nudge.” Explosions, shootouts, collapsing cities: The trailer assembles plenty of familiar set pieces as The Mule’s forces make a galactic-sized impact, potentially on a scale never before seen in the Foundation universe.

Returning cast members for the third season include series regulars Lee Pace (Brother Day), Cassian Bilton (Brother Dawn), and Terrence Mann (Brother Dusk) as the three clones of Emperor Cleon, regular Jared Harris (Hari Seldon), and returning faces Lou Llobell (Gaal Dornick) and Laura Birn (Eto Demerzel).

Season 3 is set to introduce a significant number of new cast members as well. Alexander Siddig will play the fanatical Ebling Mis, a passionate devotee of Hari Seldon’s work and a self-taught scholar of psychohistory, a science fiction field that applies mathematics and sociology to predict large-scale trends in history. Troy Kotsur joins the cast as Preem Palver, the leader of a planet of psychics. Cherry Jones will play Foundation ambassador Quent. Brandon P. Bell joins as Han Pritcher, Synnøve Karlsen as Bayta Mallow, Cody Fern as Toran Mallow, Tómas Lemarquis as the glamorous Magnifico Giganticus, Yootha Wong-Loi-Sing as Song, and Leo Bill as Mayor Indbur.

A Galaxy of Dooms

Foundation has been a wild ride through Asimov’s sprawling imagination. The original psychohistory model had been the core foundation of this fictional history, but that stability, too, may be on shaky ground. The threat of the Mule’s psionic power plays against the rationalist and mathematical world of Foundation, destabilizing clear thinking as well as predictable reactions.

Visually, though, the series has always been something special. Massive vistas of space are built and brought to life with a tangible sense of scale and scope. The civilizations in this story have a consistent richness and texture that no doubt bled over from the copious time spent on world-building on Asimov’s part. Action sequences don’t disappoint either. But even more resonant is the emotional heft that is palpable in the trailer. A confrontation looms on an unprecedented scale, and there are genuine questions about whether these factions can put aside their differences long enough to fight the most existential threat they’ve faced yet. The trailer does its best to unspool this emotional tangle, but with that much at stake, questions remain. Will psychohistory even be enough to work up a defense against something as amoral as a power-hungry warlord? And is there any conceivable future where the galaxy does not crumble into a thousand shards?

Season 3 of Foundation, it seems, is shaping up to answer those questions with some of the highest stakes and emotional gravity the show has to offer. Layered characters and an even bigger scope are set to anchor an epic third season. With a weekly release of episodes kicking off on July 11, fans of big-budget genre television have a lot to look forward to.

If the previous seasons of Foundation were concerned with the foundation pieces of Seldon’s plan, it seems this one will challenge how those pieces will hold up in the face of the impossible. The Mule’s arrival will likely not just threaten galactic peace—and the fragile support structures that went into achieving it—but the very notion that humanity’s future can be planned for or even predicted at all.