David Tennant and Nicola Coughlan are joining the cast of Hulu's *Only Murders in the Building* for season six [1].
The addition of these high-profile actors signals a shift in the series' scope as the production moves overseas. By casting established British talent, the show aims to bolster its authenticity and narrative depth for a setting outside of New York City.
Tennant and Coughlan will appear as recurring cast members [2]. The production is currently taking place in England [3]. This move marks a significant geographic departure for the series, which has primarily centered its mysteries around the Arconia in the U.S.
Other new cast members joining the sixth season include Jodie Whittaker and Jim Broadbent [4]. The series is booking top local talent to support the England-based storyline [4]. This strategic casting choice aligns with the show's history of integrating celebrity guest stars into its central mysteries.
Production is already underway, and the sixth season [5] is expected to air later in 2026 [6]. Reports confirming the casting were released on June 15 [7].
While the specific roles of Tennant and Coughlan remain undisclosed, their presence suggests a complex web of characters for the investigators to navigate. The transition to a UK-based setting allows the writers to explore new environments while maintaining the show's signature comedic tone. The casting of Coughlan, known for her work in *Bridgerton*, and Tennant, a former *Doctor Who* lead, brings a blend of contemporary and classic British appeal to the ensemble [1].
“David Tennant and Nicola Coughlan are joining the cast of Hulu's Only Murders in the Building for season 6.”
The decision to film season 6 in England and cast prominent British actors like Tennant and Coughlan indicates an expansion of the show's creative universe. By moving the action to the UK, Hulu is diversifying the series' setting to prevent formula fatigue while leveraging international star power to maintain its global viewership growth.
