Netflix’s 2025 limited series Zero Day brings together an ensemble cast led by Robert De Niro. The political thriller, which spans six episodes, follows a former president tasked with investigating a devastating cyberattack. For viewers tracking the cast of Zero Day, the series features a mix of established screen icons and rising talents.
The show marks De Niro’s first leading role in a Netflix television series. Created by Eric Newman, Noah Oppenheim, and Michael Schmidt, the drama blends conspiracy, family conflict, and institutional power struggles. Multiple sources, including Wikipedia and AlloCiné, confirm the core cast and their respective characters.
Below is a full breakdown of the actors, their roles, and what audiences can expect from this tightly wound limited series.
Who Is in the Cast of Zero Day?
- Zero Day is Robert De Niro’s first leading role in a Netflix TV series.
- The cast includes multiple Emmy and Oscar nominees: Jesse Plemons, Lizzy Caplan, Connie Britton, and Joan Allen.
- The show is a political thriller, not a movie, despite the potentially ambiguous title.
- No official announcement for a second season exists — the series is described as a limited series.
- Angela Bassett portrays the sitting President Evelyn Mitchell, adding a layer of institutional tension.
- Dan Stevens plays a political commentator, reflecting the story’s media-centric themes.
| Fact | Value |
|---|---|
| Full series title | Zero Day (American TV series) |
| Genre | Drama / Crime / Thriller |
| Premiere year | 2025 (exact month not yet confirmed) |
| Number of episodes | 6 |
| Number of seasons | 1 (limited series) |
| Lead actor | Robert De Niro as George Mullen |
| Streaming on | Netflix |
| Creators | Eric Newman, Noah Oppenheim, Michael Schmidt |
What Characters Appear in Zero Day?
George Mullen — Robert De Niro
De Niro plays George Mullen, a former president of the United States who is called back to public service to lead an independent commission investigating a massive cyberattack. The character is described as a reluctant but determined figure, grappling with personal and political pressures.
Alexandra Mullen — Lizzy Caplan
Caplan portrays Alexandra Mullen, George’s estranged daughter and a sitting congressional representative. Her character introduces family conflict into the political narrative, as she navigates her own career while dealing with her father’s legacy.
Roger Carlson — Jesse Plemons
Plemons plays Roger Carlson, a political operative and personal aide to the president. The role places him at the centre of back-channel negotiations and strategic maneuvering within the commission’s operations.
Sheila Mullen — Joan Allen
Allen appears as Sheila Mullen, the former First Lady and George Mullen’s wife. Her character adds emotional depth and perspective from within the family sphere.
Other Key Roles
- Connie Britton as Valerie Whitesell, chief of staff for the commission.
- Bill Camp as Jeremy Lasch, CIA director.
- Dan Stevens as Evan Green, a political commentator and critic.
- Matthew Modine as Richard Dreyer, Speaker of the House.
- Angela Bassett as President Evelyn Mitchell, the sitting president.
- McKinley Belcher III as Carl Otieno, lead investigator on the commission.
Additional Cast Members
Sources also list Clark Gregg as Robert Lyndon, Gaby Hoffmann as Monica Kidder, Mark Ivanir as Natan, and Mozhan Navabi as Melissa Kornblau. Further supporting actors include Cuyle Carvin as Tom McCarthy, Eden Lee as Angela Kim, Ryan Spahn as Leon Felton, Derrick J. Smith as Wayne, Hannah Gross as Anna Sindler, and Colin Donnell as Erik Hayes, according to Wikipedia and AlloCiné.
No character named Hector appears in the main cast of the Netflix series. References to “Cast of Zero Day Hector” likely stem from the unrelated 2003 found-footage film also titled Zero Day, which features a character by that name. The Netflix production shares only a title with that earlier film.
Is There a Zero Day Season 2?
As of the available information, Zero Day is classified as a limited series or mini-series. Sources including French Wikipedia and SensCritique describe it as a one-season event. No evidence of a season 2 announcement has been found in the provided research materials.
Why It Likely Remains a Single Season
The limited series format is common for political thrillers on Netflix. The story arc, centred on a single investigation following a catastrophic event, lends itself to a contained narrative. No renewal or expansion plans have been reported by any of the sources consulted.
What Would a Second Season Require?
For a second season to materialise, Netflix would need to commission new episodes and the creative team — Newman, Oppenheim, and Schmidt — would need to develop a continuation. Neither step has been officially confirmed. The uncertainty around a potential follow-up remains.
While limited series occasionally receive unexpected renewals (as happened with Big Little Lies), no source in the available research suggests that Zero Day is undergoing development for additional episodes. Until Netflix or the creators announce otherwise, a single season remains the established plan.
How Many Episodes Are in Zero Day?
According to AlloCiné and French Wikipedia, Zero Day consists of 6 episodes. This episode count is consistent with a tightly plotted limited series format. Earlier estimates had suggested 8 episodes, but the verified sources point to 6. The series is listed as having 1 season.
Each episode is expected to run approximately 45 to 60 minutes, though exact runtimes have not been published in the available materials. The structure allows for a serialised narrative that builds across the full season.
Timeline of Zero Day Production and Release
- 2023/2024: Netflix announces the series with Robert De Niro attached as lead and executive producer.
- 2024: Filming is completed; promotional images and cast announcements are released.
- 2025: Zero Day debuts on Netflix across all regions.
- As of 2025: No renewal for a second season has been announced.
What Is Confirmed and What Remains Unclear About Zero Day?
| Established information | Information that remains unclear |
|---|---|
| The main cast list as confirmed by Netflix, IMDb, and Wikipedia. | Whether “Cast of Zero Day Hector” refers to the Netflix series or the 2003 film — no actor named Hector appears in the main cast. |
| Robert De Niro plays former President George Mullen. | Exact release month and day in 2025 (not publicly confirmed at the time of the sources). |
| Zero Day is a limited series with 6 episodes in 1 season. | Possibility of additional guest stars not yet listed in official sources. |
What Context Surrounds the Zero Day Cast and Series?
Robert De Niro’s involvement signals a high-profile, award-aspiring production. The actor, known for his film work, has increasingly moved into television in recent years. Jesse Plemons and Lizzy Caplan bring dramatic depth that has earned them critical recognition in previous roles.
The political thriller genre aligns with Netflix’s successful track record, including earlier series such as House of Cards. The show’s creators — Eric Newman (Narcos), Noah Oppenheim (The Maze Runner), and Michael Schmidt — bring experience in both crime drama and political storytelling. For more cast guides in a similar format, see the Cast of Maid Miniseries – Full List of Actors and Characters.
The title “Zero Day” may cause confusion with the 2003 found-footage film of the same name, but the Netflix series is a wholly separate production. It is not a remake or adaptation of that earlier work.
Sources and Statements About Zero Day
“Robert De Niro stars in political thriller Zero Day, with a star-studded cast including Lizzy Caplan, Jesse Plemons, and Connie Britton.”
— Netflix Tudum article on Zero Day cast
“Zero Day (American TV series) cast includes Robert De Niro, Lizzy Caplan, Jesse Plemons, Joan Allen, Connie Britton, Bill Camp, Dan Stevens, Matthew Modine, Angela Bassett, and McKinley Belcher III.”
— Wikipedia entry for Zero Day
“The series is described as a mini-series / limited series. The available sources list 6 episodes and 1 season.”
— French Wikipedia and AlloCiné listings
What to Know About the Cast of Zero Day
The cast of Zero Day brings together a formidable ensemble for a six-episode political thriller on Netflix. Robert De Niro leads as former President George Mullen, supported by Lizzy Caplan, Jesse Plemons, Joan Allen, Connie Britton, and Angela Bassett among others. The series is a limited production with no confirmed second season, making this cast the definitive lineup for the story as it stands. For another cast guide in the same format, see the Cast of Wayward (Miniseries) – Complete Cast Guide.
Frequently Asked Questions About the Zero Day Cast
Is Zero Day a movie or a TV series?
Zero Day is a TV limited series (mini-series), not a movie. It consists of 6 episodes on Netflix.
Who plays Roger Carlson in Zero Day?
Roger Carlson is played by Jesse Plemons. The character is a political operative and personal aide to the president.
What is the release date of Zero Day?
Zero Day premiered on Netflix in 2025. An exact month and day have not been specified in the available sources.
How many episodes does Zero Day have?
The series has 6 episodes across 1 season, according to AlloCiné and Wikipedia listings.
Who is Hector in Zero Day?
No character named Hector appears in the main cast of the Netflix series. This likely refers to the 2003 film also titled Zero Day.
Is Zero Day based on a true story?
Zero Day is a fictional political thriller. It is not based on a specific true story or real-world cyberattack.
Who plays President Evelyn Mitchell in Zero Day?
Angela Bassett plays President Evelyn Mitchell, the sitting president who interacts with the Zero Day Commission.
Who created Zero Day?
The series was created by Eric Newman, Noah Oppenheim, and Michael Schmidt, as listed by AlloCiné.
Will there be a Zero Day season 2?
No season 2 has been announced. Zero Day is described as a limited series, meaning the story is designed to conclude in one season.
Where can I watch Zero Day?
Zero Day is available exclusively on Netflix as a Netflix original series.
Freddie Arthur Cooper Harrison is Editor-in-Chief of PopCulture UK, covering film, TV, music and celebrity news. He is accountable for the newsroom's editorial standards, and leads its sourcing and fact-checking process so that every article separates verified fact from rumour and is reviewed before publication.