‘Only Murders in the Building’ Season 6 Guest Cast Features Impressive British Talent

‘Only Murders in the Building‘ has consistently showcased a remarkable guest roster, and the upcoming sixth season, set in London, promises to elevate that standard even further. After five seasons centered around the Arconia, Hulu’s beloved true-crime comedy is taking its trio of amateur podcasters across the Atlantic for their most ambitious chapter yet.

The renewal was confirmed by Hulu on October 28, following the Season 5 finale. Along with this announcement came the exciting news of a significant location change, with the new season being filmed entirely in London. Co-creator John Hoffman noted that the storyline will be deeply rooted in London culture, referring to the city as “New York’s sister city” and describing the trio as “fish in new waters,” marking this as the show’s first fully international season.

Steve Martin, Martin Short, and Selena Gomez will reprise their roles as Charles-Haden Savage, Oliver Putnam, and Mabel Mora, respectively, picking up from a cliffhanger left by a dramatic finale. Season 5 concluded with Cinda Canning collapsing dead outside the Arconia after returning from a UK investigation, setting the stage for a new mystery. Showrunner John Hoffman has confirmed that Tina Fey will return as Cinda and will feature throughout the season as the investigation delves into her “origin point.”

Now, Deadline has revealed the impressive guest cast that will populate this new London setting, featuring a stellar lineup of British talent. Confirmed guest stars include Jennifer Saunders, Sean Teale, Simone Ashley, Rhea Norwood, and Sharon Horgan, all set to join the upcoming season.

Steve Martin shared a set photo with co-stars Martin Short and Selena Gomez, praising Jennifer Saunders and noting, “We love working with her, for whom chewing the scenery is fine dining.” In the photo, Saunders is seen wearing a pink wig, an oversized crinkled coat, and layered necklaces.

Each member of this cast brings significant acclaim. Saunders is renowned for creating and starring in the BBC comedy ‘Absolutely Fabulous’ as the iconic fashion PR agent Edina Monsoon, a role that garnered her international fame and a devoted fanbase.

Sharon Horgan, the talented Irish actress and writer known for ‘Catastrophe’ and ‘Bad Sisters,’ has received two Primetime Emmy nominations and a BAFTA TV Award for Best Drama Series for her Apple TV+ thriller. Rhea Norwood, recognized for her role as Imogen Heaney in Netflix’s ‘Heartstopper,’ adds a youthful British flair to the ensemble. Sean Teale’s diverse career includes roles in ‘Skins,’ the historical drama ‘Reign,’ and Fox’s ‘The Gifted,’ showcasing a versatility that aligns with the show’s tradition of casting against type. Both Simone Ashley and Sean Teale were also spotted by photographers on the London set during production.

As Hulu’s most-watched original comedy to date, ‘Only Murders in the Building’ has garnered Emmy nominations for Outstanding Comedy Series across multiple cycles, making the confidence behind this guest lineup feel well-deserved. Following the show’s established pattern of premiering between August and October each year, Season 6 is anticipated to debut in fall 2026.

With the core trio, a murder mystery steeped in British podcasting intrigue, and a wave of beloved UK stars confirmed, fans are already buzzing with excitement. Which of these new additions are you most eager to see interact with Charles, Oliver, and Mabel on the streets of London?