Which actor stars as Juliette Nichols in Silo season 3?

Rebecca Ferguson stars as Juliette Nichols in Silo season 3. Juliette is an engineer from the lower levels of the underground community whose investigation exposes dangerous secrets about the Silo’s history and rules.

Ferguson was attached to the project when Apple TV+ ordered the series, after earlier attempts to adapt Hugh Howey’s Wool as a film had stalled. Her performance became the center of the television adaptation, and she also serves as an executive producer. Juliette’s technical background is crucial to the story: she understands the machinery that keeps the 144-level Silo functioning, while her questions challenge the official version of life outside.

A common mix-up is confusing Ferguson with other major cast members. Rashida Jones plays Allison Becker, Harriet Walter plays Judge Meadows, and Jessica Henwick joined the cast for season 3. None of them plays Juliette. Silo season 3 follows the renewed series after its first two seasons, with the story continuing toward a planned fourth and final season.