50 Fun Facts About Silo

On which streaming service did Silo premiere in May 2023?

Apple TV+ renewed Silo for a second season in June 2023, before the first season had even finished airing.

Who plays engineer Juliette Nichols?

Rebecca Ferguson also executive produces Silo, and her Juliette survives exile outside only to come home in season three with her memory gone.

Silo's underground city has 144 levels; what do residents call the lowest ones?

The Down Deep houses the generator that powers the silo, and Juliette fled there as a teenager to become an engineer.

In Silo, residents who say they want to go outside are sent out to do what?

Clean the sensors: exiles nearly always do before dying in the camera's view, which convinces residents the outside is deadly.

Which author self-published the novels that the TV series Silo is based on?

Hugh Howey had worked in a bookstore before self-publishing, and he turned down seven-figure offers to keep his e-book rights, taking a print-only deal instead.

What are the three novels in the Silo trilogy?

Wool, Shift and Dust grew out of Wool, a short story its author meant to stand alone until it became an online sensation.

Which creator of the crime drama Justified also created the TV series Silo?

Graham Yost took over from writer LaToya Morgan, whose version had been developed at another network, and he also serves as showrunner.

Who plays Allison Becker in season one?

Rashida Jones's Allison publicly declares she wants to go outside, a wish the silo is bound to grant.

Who plays Sheriff Holston Becker?

David Oyelowo's Holston, still grieving his exiled wife, asks to be sent outside himself.

Which rapper-actor plays Robert Sims, head of security for Judicial?

Common's Sims backs Bernard's false claim that Juliette asked to go outside, and she is arrested.

In Silo, what is the procedure by which Silo 1 can pump poison into a silo to kill everyone?

The safeguard failed in Silo 17, because its poison pipe had been welded shut during the uprising.

What is Bernard Holland's job in Silo?

Head of IT: Bernard guards a vault of secret records and turns out to be the silo's real ruler.

Martha Walker, Juliette's mentor, suffers from what condition?

Agoraphobia keeps Martha shut in her workshop, yet she secretly got Juliette a better-sealed suit, which let Juliette survive outside.

In Silo, what did maintenance worker Patrick Kennedy once smuggle?

Relics are forbidden pre-silo objects, and a relic hard drive holding George's secret files powers season one's mystery.

Deputy Paul Billings is afflicted with which condition?

The Syndrome causes tremors, and Billings hides it because sufferers are barred from jobs like deputy.

Who plays Lukas Kyle, the systems analyst curious about the world outside?

Avi Nash's Lukas charts 'lights' on the silo's night view without knowing they are stars, and meets Juliette in the cafeteria.

Who plays Juliette's estranged father, Dr. Pete Nichols?

Iain Glen's Pete lost his daughter when she blamed him for informing on her mother, until Judicial's own files showed cameras had caught her.

Who plays Deputy Sam Marnes in season one?

Will Patton's Marnes believes the poison that killed Mayor Jahns was meant for him, because they drank from each other's flasks.

Who plays George Wilkins, the computer geek with a repair shop?

Ferdinand Kingsley's George recovers files from an old hard drive and dies in a fall Juliette calls murder, though footage later shows he jumped.

Which actress plays Judge Mary Meadows?

Tanya Moodie's Meadows ends up poisoned by Bernard in season two.

In Silo, what is the Pact?

The silo's list of rules hides a secret too: one old copy was used to encode a letter from a leader of the rebellion era.

Who plays Mayor Ruth Jahns?

Geraldine James's Jahns is 40 years into a beloved tenure when she is poisoned.

In Silo, what are the armed enforcers who work for Robert Sims called?

Raiders are sent to seize Juliette once she discovers the surveillance cameras hidden behind the silo's mirrors.

Which actor joined Silo's cast for season two, announced at Comic-Con 2024?

Steve Zahn walked on as a surprise at the Comic-Con fan panel, and his character grew up alone in a locked vault after a rebellion.

In Silo's second season, what does Juliette search a flooded silo for so she can return home?

A firefighter suit was Solo's idea, and Juliette wears one to walk home to Silo 18 in the season finale.

In Silo, what do residents call the lost era whose records were destroyed 140 years ago?

The Before Times were erased on purpose: season two reveals the silo's own leaders destroyed the records and drugged the water so people would forget.

In Silo's season two finale, what does Juliette's father Pete Nichols sacrifice himself to blow up?

The stairs: blowing them up trapped Bernard's forces in the levels below, cut off from the rebels above.

Ashley Zukerman plays which season-three character?

Congressman Daniel Keene pushes to join a Senate committee because his sister is a pilot on the military mission it oversees.

Jessica Henwick plays Helen Drew, who has what job?

Journalist Helen Drew is fired for chasing the story of a failed military mission, which leads her to the people building the silos.

Laura Innes plays Senator Rosalind Thurman, overseeing conflict with which country?

Iran is blamed for a dirty bomb on Washington, and Thurman later steers a pilot hurt on the retaliatory mission into a clinic that erases her memory.

Who plays Per Stensen, the billionaire who funds the silos?

Colin Hanks's Stensen champions controlling AI, yet he turns out to have been secretly involved in the military strike at the heart of season three.

When Juliette returns to Silo 18 at the start of season three, what post does she hold?

Mayor Juliette is only a figurehead at first, secretly controlled by Camille on the orders of the Legacy.

In Silo's second season, what does Juliette climb over to get inside the abandoned Silo 17?

Its residents' bodies lie at the entrance because Silo 1's drones gunned down the rebels after they walked out.

In Silo, which US state are the silos built in?

Georgia: near Atlanta, the silos' opening day ends in catastrophe when a nuclear bomb goes off and visitors are rushed inside.

In Silo, what illegal device does surgeon Hanna Nichols secretly build?

A magnifier, banned in the silo, which Hanna believed could have let surgeons save her son from his heart defect.

In Silo, what job does Robert Sims's father officially hold while doing secret work for the silo?

Janitor was only a cover: behind a janitorial closet door his father did secret work crucial to the silo, hence episode five's title, The Janitor's Boy.

In Silo, which secret group dedicated to preserving the past does Gloria Hildebrandt belong to?

The Flamekeepers kept the past alive, so the silo's authorities hunted them down and even stopped members from having children.

In Silo, what word is carved on the back of Holston's badge, persuading Juliette to become sheriff?

Truth was the signal Holston had promised to send once he found something, so Juliette took the badge as his message to keep digging.

The original Wool short story that launched the Silo novels follows which character?

Holston carries the original short story, which ends with his death, and the TV show likewise opens on him before handing the lead to Juliette.

Which company launched Jet City Comics, the imprint that turned Wool into a graphic novel?

Amazon's Kindle store was where Wool first became a self-publishing hit, before Jet City turned it into a graphic novel.

Which movie studio first bought the screen rights to Wool, the novel behind Silo?

20th Century Fox bought Wool with Ridley Scott attached, yet the film never happened and the story went to TV instead.

Which cable network first developed Silo as a TV series before it moved to a streaming service?

AMC never fully let go: after the show moved to a streaming service, AMC Studios stayed on as its producer.

Which director of The Imitation Game also directed Silo's first episodes?

Morten Tyldum started out in Norwegian TV, helping launch the youth series U on NRK.

In which English town was the series filmed?

The Hertfordshire studio's main set is three levels of staircase redressed for different locations.

Who plays Shirley Campbell, Juliette's closest friend and fellow engineer?

Remmie Milner's Shirley starts organizing secret meetings of workers in season two, pushing her friends toward open revolt.

In Silo's second season, what is Juliette shot with by a hidden attacker in Silo 17?

A bow and arrow: the attacker was one of a group of young survivors whose parents Solo had killed when they broke into his vault.

Why was filming on Silo's second season suspended for months?

The SAG-AFTRA strike halted the shoot until December, pushing season two's premiere back to November 2024.

In Silo, what does Allison Becker discover her doctor only pretended to remove?

A birth control implant, which convinced Allison that the silo's leaders were lying to everyone.

When Silo was renewed in December 2024, what was its fourth season announced as?

Its final season: the showrunner said four seasons would let the team bring the complete story to the screen.

In Silo's season one finale, what does Juliette's helmet visor show her once she is outside?

A fake green landscape: the visor replays old footage so exiles believe the world is healthy, when the grim view on the silo's screens is real.