Only Murders in the Building is returning for Season 6 with a major change in location, a new murder mystery and an expanded British cast. Hulu has confirmed that the next chapter will premiere in the United States on December 8, 2026, with Charles-Haden Savage, Oliver Putnam and Mabel Mora heading to London.
The move marks the biggest geographical shift in the series since its launch. For five seasons, the Arconia in New York City provided the setting for the trio’s investigations. The upcoming season takes them across the Atlantic for a case involving true-crime podcaster Cinda Canning.
Season 6 also brings several high-profile British actors into the ensemble. Olivia Colman, David Tennant, Martin Freeman, Nicola Coughlan, Peter Capaldi and Jodie Whittaker are among the names joining the new chapter.
When Does Season 6 Premiere?
Hulu has scheduled the sixth season to debut on December 8, 2026.
The U.S. premiere will take place on a Tuesday, with subsequent episodes scheduled to follow weekly.
The December launch places the new season in a different part of the calendar from several previous installments. It also gives Hulu a major returning series for the final weeks of the year.
For viewers who have followed the show since its first season, the premiere date confirms exactly when the Charles, Oliver and Mabel story will continue.
The Series Is Leaving New York
The most significant change in the new season is the location.
Charles, Oliver and Mabel will leave New York City and travel to London. The British capital will become the principal setting for their next investigation.
The Arconia has been one of the most recognizable elements of the series. Its residents, hallways and apartments have repeatedly provided clues, suspects and comic situations.
Season 6 moves away from that familiar environment.
The change gives the writers an opportunity to introduce an entirely new collection of characters. It also puts the three leads in a place where they have little previous experience investigating murders.
The London setting adds a new visual identity while preserving the show’s established mystery-comedy formula.
A New Murder Brings the Trio to London
The next investigation centers on Cinda Canning.
Cinda is an experienced true-crime podcaster who has appeared throughout the series. Her connection to the podcast world makes her death particularly relevant to Charles, Oliver and Mabel.
The trio will investigate her apparent murder after traveling to London.
This storyline keeps the show’s long-running interest in true crime at the center of the narrative. It also brings back a character whose career has frequently intersected with the trio’s own podcast ambitions.
The new mystery therefore connects the sixth season to the show’s earlier storylines while taking the characters into unfamiliar territory.
The Original Trio Is Returning
The three actors who anchor the series are all returning.
Steve Martin continues as Charles-Haden Savage, the former television actor whose detective background often influences his approach to investigations.
Martin Short returns as Oliver Putnam, the theatrical director whose dramatic personality remains an important source of comedy.
Selena Gomez returns as Mabel Mora, whose sharp instincts and interest in true crime helped bring the trio together.
Their friendship remains the central relationship in the series.
The London setting changes their surroundings, but the show’s core dynamic remains intact.
Meryl Streep Returns as Loretta
Meryl Streep will reprise her role as Loretta Durkin.
Streep became part of the series during its third season. Loretta also became closely connected to Oliver, giving her character an important personal relationship with one of the show’s central figures.
Her return gives Season 6 another link to the previous chapters.
With the story moving overseas, familiar characters such as Loretta can provide continuity while the new London characters establish a different atmosphere.
Detective Donna Williams Is Also Back
Da’Vine Joy Randolph is returning as Detective Donna Williams.
Randolph’s character has been part of the show’s law-enforcement side and has interacted with Charles, Oliver and Mabel during their investigations.
Her return provides another familiar connection to the series’ earlier seasons.
Although the trio’s latest case takes place in London, the continued presence of returning characters shows that Season 6 is not a complete reset.
Instead, the series is expanding its world while maintaining important relationships.
Olivia Colman Joins the Ensemble
Olivia Colman is among the most prominent new additions.
The Oscar-winning actress joins Season 6 as part of the show’s growing British ensemble.
Her casting was announced through a promotional video featuring Selena Gomez, Martin Short and Meryl Streep.
Colman’s addition is especially notable because the upcoming season includes a remarkable number of well-known British performers.
Her presence reinforces the decision to make London more than a temporary backdrop. The production is building an ensemble that reflects the new setting.
David Tennant, Peter Capaldi and Jodie Whittaker Are Joining
Three actors associated with Doctor Who are also appearing in Season 6.
David Tennant, Peter Capaldi and Jodie Whittaker are all part of the cast.
Tennant played the Tenth and Fourteenth Doctors. Capaldi portrayed the Twelfth Doctor, while Whittaker became the Thirteenth Doctor.
Their involvement gives the season another strong connection to British television.
The casting also illustrates how extensively the production has embraced British talent for the London storyline.
More British Stars Are Part of Season 6
The guest cast extends well beyond Colman and the three Doctor Who performers.
Season 6 includes:
- Martin Freeman
- Nicola Coughlan
- Jim Broadbent
- Richard Ayoade
- Jennifer Saunders
- Geri Halliwell
- Sharon Horgan
- Derek Jacobi
- Jane Horrocks
- Lesley Nicol
- Kathryn Hunter
- Adrian Lukis
- Jamie Demetriou
- Simone Ashley
- Rhea Norwood
- Sean Teale
- Matthew Beard
- Anjana Vasan
Tina Fey also remains connected to the series through Cinda Canning.
The size and variety of the ensemble give the sixth season a distinctly different character from earlier installments.
Why the London Setting Matters
The move to London is more than a change of scenery.
The show’s earlier seasons developed mysteries around a close community of residents living inside the same apartment building. Characters often knew one another, and seemingly minor interactions could become important clues.
London offers a much larger playing field.
The trio will have to meet unfamiliar people, navigate a different environment and investigate a murder without the built-in knowledge they gained from years around the Arconia.
That change can also create new comedic opportunities.
Charles, Oliver and Mabel have established personalities, but placing them in a different country gives those personalities a new context.
Season 6 Brings a British Mystery Atmosphere
The new setting naturally connects the show with classic British mystery traditions.
London has a long association with detective stories, crime dramas and whodunits. Season 6 can use that atmosphere while maintaining the modern podcast-driven approach that defines the series.
The large British cast strengthens that connection.
The upcoming story can introduce a new group of suspects and personalities without losing the show’s established balance of suspense and comedy.
The production’s move to the United Kingdom is therefore one of the most important creative developments in the series’ history.
What Season 5 Set Up
Season 5 revolved around the death of Lester, the longtime doorman at the Arconia.
Charles, Oliver and Mabel became suspicious of the circumstances surrounding his death. Their investigation eventually uncovered a larger network of secrets and criminal activity.
The season brought that mystery to a conclusion while setting up the next chapter.
Cinda Canning became central to the transition into Season 6.
The connection between Cinda and the trio’s true-crime world makes her death an especially fitting mystery for the show’s next chapter.
The Season 5 finale effectively moved the narrative away from the Arconia and toward the international story that will dominate Season 6.
Production Has Moved to the United Kingdom
Filming for the sixth season is taking place in the United Kingdom.
Images released during production have shown the three leads working in London. The production has also used British locations beyond the capital.
That gives the new season an opportunity to showcase environments that viewers have not previously seen in the series.
The production change is substantial.
Earlier seasons relied heavily on New York City and the fictional Arconia. Season 6 instead requires the cast and crew to build a new visual world around London.
The result should make the sixth season immediately recognizable as a new chapter.
The Series Still Revolves Around the Podcast Trio
Despite the location change, the basic concept remains familiar.
Charles, Oliver and Mabel continue to be connected by their fascination with true crime.
Their podcast became a major part of their lives after they became involved in a real murder investigation. Subsequent cases repeatedly brought them deeper into the world they had originally approached as outsiders.
Season 6 continues that progression.
The difference is that they are now entering a mystery in London rather than investigating another case close to home.
Their established podcast experience should remain important as they attempt to understand Cinda’s death.
What Is Confirmed About Season 6
Several details about the upcoming season are now firmly established.
| Detail | Confirmed information |
|---|---|
| Season | Season 6 |
| U.S. premiere | December 8, 2026 |
| Streaming service | Hulu |
| Primary setting | London |
| Main stars | Steve Martin, Martin Short, Selena Gomez |
| Returning cast | Meryl Streep, Da’Vine Joy Randolph |
| New major cast member | Olivia Colman |
| New British stars | David Tennant, Peter Capaldi, Jodie Whittaker, Martin Freeman and others |
| Central mystery | Investigation involving Cinda Canning |
These confirmed details provide the clearest picture yet of what viewers can expect.
Additional story information has remained limited, allowing the production to protect the mystery surrounding the new case.
How the New Season Could Change the Series
Moving overseas represents a significant turning point.
The Arconia has served as a recurring character in its own right. Its importance came from the relationships between residents and the many secrets hidden within the building.
London removes that familiar framework.
Charles, Oliver and Mabel will have to establish new connections while investigating a case involving people they do not know.
That could make Season 6 feel different without requiring the series to abandon its central characters.
The change also gives the writers a chance to introduce a wider range of personalities.
With so many British actors joining the ensemble, viewers can expect the London mystery to have a substantially different supporting cast from previous seasons.
When U.S. Viewers Can Watch
Season 6 will be available to U.S. viewers through Hulu beginning December 8, 2026.
The episodes are scheduled for weekly Tuesday releases.
Fans who want to revisit the story before the new season can watch the first five seasons on Hulu.
The previous episodes provide the background needed to understand the relationships between Charles, Oliver and Mabel, as well as Cinda Canning’s history with the trio.
A rewatch also gives viewers a chance to revisit the show’s earlier murder cases before the London investigation begins.
The Latest Outlook for Only Murders in the Building
The sixth season is shaping up as the most significant reinvention of the series so far.
The central trio remains unchanged, but almost everything around them is expanding. The story leaves New York, production moves to the United Kingdom and a large group of British performers joins the cast.
The new mystery also places Cinda Canning at the center of the story.
For longtime viewers, the combination of familiar leads and a completely different setting offers a fresh reason to return.
The confirmed December 8 premiere gives fans a clear date to mark as the next chapter approaches.
Season 6 is not simply another case at the Arconia. It is a London-set mystery that takes Charles, Oliver and Mabel into unfamiliar territory while keeping the humor, friendship and investigative spirit that have defined the series.
What do you think about the move to London for Season 6? Share your thoughts and keep checking back for the latest confirmed updates.