Only Murders In The Building Season 6: Everything We Know

With the Arconia's future secured, Charles, Oliver and Mabel are heading across the pond for their next investigation.

Hulu renewed "Only Murders in the Building" for Season 6 on October 28, 2025, mere hours after the Season 5 finale dropped. The streamer also confirmed at the time that the long-running whodunit would film Season 6 in London.

"Only Murders in the Building" Season 5 ended with the surprise return of Tina Fey's Cinda Canning, who hadn't been seen since Season 3.

In the finale's closing minutes, Charles, Oliver, and Mabel tuned into Cinda's new true-crime podcast, "The Girl With the Curls," which followed a young woman accused of murder in London. Moments later, that same red-haired woman fell to her death outside the Arconia — though she technically died in the building after grabbing the gate with her final breath. 

The victim's face was then revealed: It was Cinda herself.

When Hulu renewed "Only Murders in the Building" for Season 6, the streamer revealed that Charles, Oliver, and Mabel would leave New York behind to investigate a new mystery in London. At the time, however, it did not specify which cast members would be joining Steve Martin, Martin Short, and Selena Gomez for the trip abroad.

Since then, Hulu has confirmed that recurring guest star Meryl Streep will return as Oliver's wife, Loretta Durkin, while Da'Vine Joy Randolph will reprise her role as Detective Donna Williams. And given the Season 5 finale's game-changing reveal, it also seems likely that Tina Fey's Cinda Canning will play a major role in the next chapter.

As of August 18, TVLine has confirmed the following 22 guest stars will appear in "Only Murders in the Building" Season 6 — with Olivia Colman being the latest addition to the ensemble.

1. Simone Ashley ("Bridgerton")
2. Richard Ayoade ("The IT Crowd")
3. Matthew Beard ("Magpie Murders")
4. Jim Broadbent ("Game of Thrones")
5. Peter Capaldi ("Doctor Who")
6. Amar Chadha-Patel ("Willow")
7. Olivia Colman ("Broadchurch")
8. Nicola Coughlan ("Bridgerton")
9. Jamie Demetriou ("Stath Lets Flats")
10. Martin Freeman ("Sherlock")
11. Geri Halliwell-Horner (the Spice Girls)
12. Sharon Horgan ("Bad Sisters")
13. Jane Horrocks ("Absolutely Fabulous")
14. Kathryn Hunter ("Andor")
15. Derek Jacobi ("Vicious")
16. Lesley Nicol ("Downton Abbey")
17. Rhea Norwood ("Heartstopper")
18. Jennifer Saunders ("Absolutely Fabulous")
19. Sean Teale ("Doctor Odyssey")
20. David Tennant ("Doctor Who")
21. Anjana Vasan ("We Are Lady Parts")
22. Jodie Whittaker ("Doctor Who")

Character details are being kept under wraps.

On August 25, Hulu revealed a December premiere date for "Only Murders in the Building" Season 6 — which you can find by clicking here.