Disclosure Day Cast 2026 Steven Spielberg Alien Thriller

Steven Spielberg returned to the world of UFOs and extraterrestrial mysteries with Disclosure Day, one of the most talked-about science-fiction movies of 2026. The film follows a global revelation that humanity is not alone in the universe, combining suspense, mystery, and emotional storytelling. Along with Spielberg’s direction, the movie has attracted attention because of its impressive ensemble cast.

From award-winning actors to rising stars, the cast of Disclosure Day brings the film’s alien conspiracy story to life. Here is a complete look at the main cast members and the characters they portray.

Disclosure Day 2026 Cast

Actor	Character	Role Description
Emily Blunt	Margaret Fairchild	A meteorologist who becomes connected to the mystery surrounding extraterrestrial life.
Josh O’Connor	Daniel Kellner	A cybersecurity expert and whistleblower searching for the truth.
Colin Firth	Noah Scanlon	The powerful leader of the secretive Wardex organization.
Eve Hewson	Jane Blankenship	Daniel’s girlfriend and a former nun caught in the unfolding crisis.
Colman Domingo	Hugo Wakefield	A former Wardex insider who supports public disclosure.
Wyatt Russell	Jackson	Margaret’s boyfriend who becomes involved in the events.
Elizabeth Marvel	Sister Maura	A nun connected to the mystery behind the alien revelations.
Hettienne Park	Serena	A Wardex agent working within the organization.

Emily Blunt as Margaret Fairchild

Emily Blunt plays Margaret Fairchild, a Kansas City meteorologist whose life changes after strange events connect her to an extraterrestrial mystery. Margaret becomes one of the central figures in the story as she struggles to understand unusual abilities and hidden truths. Her character serves as an emotional anchor throughout the film.

Josh O’Connor as Daniel Kellner

Josh O’Connor stars as Daniel Kellner, a cybersecurity specialist who uncovers evidence of a long-running cover-up involving alien contact. Determined to expose the truth, Daniel finds himself pursued by powerful forces trying to keep the secret hidden.

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Colin Firth as Noah Scanlon

Oscar winner Colin Firth portrays Noah Scanlon, the influential head of Wardex. Scanlon is determined to prevent sensitive information from reaching the public, placing him directly at odds with Daniel and the growing disclosure movement.

Eve Hewson as Jane Blankenship

Eve Hewson plays Jane Blankenship, Daniel’s girlfriend and a former nun. As the crisis unfolds, Jane becomes increasingly involved in the search for answers while facing difficult questions about faith, truth, and humanity’s place in the universe.

Colman Domingo as Hugo Wakefield

Colman Domingo appears as Hugo Wakefield, a former member of Wardex who decides to reveal what he knows. His insider knowledge becomes a valuable weapon against those trying to suppress the truth.

Wyatt Russell as Jackson

Wyatt Russell plays Jackson, Margaret’s boyfriend. While not directly involved in the conspiracy at first, he becomes caught up in the escalating events as the world edges closer to full disclosure.

Elizabeth Marvel as Sister Maura

Elizabeth Marvel portrays Sister Maura, a nun whose connection to the larger mystery gradually comes to light. Her role adds another layer of intrigue to the film’s exploration of belief and extraterrestrial life.

Supporting Cast

The film also features a strong supporting lineup that includes Henry Lloyd-Hughes, Michael Gaston, Elliot Villar, Tommy Martinez, Mckenna Bridger, Patricia Conolly, Noah Robbins, Gabby Beans, Chavo Guerrero Jr., Lance Archer, and Brian Cage. Together they help build the world surrounding the global disclosure event.

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What Is Disclosure Day About?

The story centers on a shocking revelation that proves humanity is not alone. As evidence of alien life emerges, governments, corporations, and ordinary people struggle to respond. At the heart of the story are Daniel Kellner and Margaret Fairchild, whose lives become deeply connected to the truth behind extraterrestrial contact.

Rather than focusing only on spectacle, Spielberg uses the film to explore themes of trust, empathy, fear, and how society reacts when faced with a reality-changing discovery.