The cast of Silo and creator Graham Yost have publicly responded to the growing fan theories that connect their dystopian series to Apple TV+’s other sci-fi hit Severance. In an official Apple TV segment, the team weighed in on the popular speculation that the two shows exist within the same universe—a concept fans have dubbed the “Apple multiverse.”
While no official connection between the series has been confirmed, the thematic similarities between the two shows have sparked countless crossover theories online. Both series explore unsettling themes of identity, memory, and the hidden nature of reality. Silo takes place inside a massive underground bunker where the last remnants of humanity live after civilization collapsed. Severance follows office workers whose personal and professional memories have been surgically divided by their employer, Lumon Industries.
The conversation around a potential shared universe reached a new level when Ferguson, Yost, and the cast directly addressed fan theories in a recently released video.
Cast Members Give Their Take on the Lumon Theory
One of the most popular theories suggests that Lumon Industries—the shadowy corporation from Severance—is actually the puppet master behind the underground bunkers in Silo. The theory proposes that severed Lumon employees, or their corporate handlers, are orchestrating the entire Silo simulation.
The cast had varied reactions to this idea. Actor Ashley Zukerman, who plays Daniel in Silo, gave the theory a 3 out of 10, suggesting he was not particularly convinced. On the other hand, Jessica Henwick, who plays Helen, seemed genuinely impressed and called it the “Apple Multiverse.”
Rebecca Ferguson joked about the idea, suggesting that all the characters would do well if such a crossover ever happened. Alexandria Riley (Camille) and Common (Robert Sims) were both impressed by the fan theory and described a potential crossover as “crazy.”
Tim Robbins, who plays Bernard, had perhaps the most intriguing reaction. While he denied the theory and refused to reveal anything, he capped off his response with a noticeable wink, leaving fans even more suspicious about what might be coming.
Creator Graham Yost also participated in the discussion, revealing his admiration for Severance star Adam Scott.
Severance as a Prequel to Silo
Beyond the Lumon control theory, another popular idea suggests that Severance could actually function as a prequel to Silo. This theory claims that a corporate disaster at Lumon destroyed the outside world, forcing survivors into severed floors that eventually became the underground bunkers seen in Yost’s series.
With both Adam Scott’s character in Severance and Ferguson’s Juliette in Silo struggling to piece together the mysteries of their respective worlds, this theory holds some appeal for fans. The idea that a corporate catastrophe at Lumon could have led to the creation of the Silos provides a compelling narrative bridge between the two shows.
Another theory links the concept of memory and identity across both series. In Severance, Lumon employees are deprived of half their lives by literally splitting their consciousness. In Silo, the residents have lost their collective memory of how they ended up underground. Fans have drawn parallels between these two explorations of controlled memory and manufactured reality.
The Apple Multiverse Takes Shape
The “Apple multiverse” theory has existed almost since Silo first premiered. With the latest season of the Rebecca Ferguson-starring series expanding on the mythology of the underground bunkers by introducing a ‘Before Times’ storyline, comparisons to Severance have only intensified.
Apple TV+ has quietly built a reputation as the premier destination for cerebral sci-fi television. Shows like Severance, Silo, Foundation, and Dark Matter all feel distinct from one another but share a commitment to big-budget, thought-provoking storytelling that trusts audiences to keep up. This approach has turned Apple TV+ into the platform that genre fans rely on.
The streamer has been expanding its sci-fi offerings in recent years. For All Mankind recently became Apple TV+’s first real shared sci-fi universe with the debut of Star City, a spinoff focusing on the Soviet side of the space race. This has led fans to wonder whether other Apple TV+ shows could eventually connect in similar ways.
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What This Means for Fans
For viewers who enjoy both shows, the cast’s willingness to engage with crossover theories adds another layer of enjoyment to the viewing experience. While there is no official confirmation that Silo and Severance share a universe, the thematic connections between the two series are hard to ignore.
Both shows deal with characters trapped in systems they don’t fully understand. Both explore how authority figures control information to maintain power. And both raise questions about what it means to be human when your memories and identity can be manipulated.
The fact that the cast and creator are aware of these fan theories—and are willing to discuss them publicly—suggests that Apple TV+ is paying attention to what its audience is saying. Whether this leads to any actual crossover remains to be seen, but for now, fans have plenty of material to keep the speculation going.
The Silo cast’s reactions to the Severance crossover theories show that even the people making these shows enjoy the conversation. From Tim Robbins’ playful wink to Rebecca Ferguson’s joking support, the cast has embraced the fan theories without confirming anything definitively.
As Apple TV+ continues to build its library of sci-fi content, the possibility of interconnected stories becomes more plausible. Whether Silo and Severance ever officially cross over or not, the discussion around the “Apple multiverse” shows how invested audiences have become in both shows.
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For more updates on Silo, Severance, and everything happening in the world of Apple TV+ sci-fi, keep checking back for the latest news and insights.
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