BBC crime drama Shetland will return for its 11th season on Thursday, November 12, 2026, at 9 pm on BBC One and BBC iPlayer, marking the final series for longtime star Alison O’Donnell as DI Alison “Tosh” McIntosh.
The six-part detective series, based on the novels by crime writer Ann Cleeves, is set to open its upcoming run with a grim aquatic discovery that dredges up a dark chapter from the archipelago’s past. According to official synopses distributed by broadcasters, the narrative begins when a vehicle is hauled from the sea with skeletal remains packed inside its boot. Investigators quickly trace the car to Dr. Raymond Linden, a respected local GP who fled the Isles nine years earlier under a cloud of troubling rumors.
The Historic Murder Investigation
DI Ruth Calder, played by Ashley Jensen, and DI Alison “Tosh” McIntosh find themselves drawn into a complex web of buried secrets as they attempt to identify the skeletal remains. The investigation takes the detective duo into dangerous territory while examining the state of mind of the enigmatic doctor and the loved ones he left behind.
Producers note that the central mystery revolves around a historic murder that will alter the present-day lives of everyone connected to the case. As Calder and Tosh dig deeper, they encounter a community where everyone appears to have something to hide.
When a car is pulled from the water, a grim discovery is made – crammed in the boot are the decomposed, skeletal remains of an unknown male. The team’s search to uncover the victim’s identity, begins with a hunt for the vehicle’s owner– a respected, local GP who left the Isles under a cloud of troubled rumours nine years ago.
BBC production synopsis
Throughout the course of the investigation, the police team navigates various complexities.
Alison O’Donnell Reflects on Her Final Season as Tosh
The upcoming season brings an emotional milestone for viewers as it marks the end of Alison O’Donnell’s tenure on the show.
Reflecting on her departure, O’Donnell described the role as the greatest gift an actor could hope for
and noted that she would need time to process the end of her run on the Scottish archipelago. She also highlighted the physical and emotional toll of her final storyline, which involved special sets, an incredible stunt artist, and very deep emotional work.
When something is as seismic as this was, you just can’t really take it in as you’re doing it. It’s like trying to look directly at the sun. It’s too big and powerful.
Alison O’Donnell, actor playing DI Tosh McIntosh
O’Donnell shared details from her final day of production on location, recalling a beautiful, sunny afternoon overlooking the sea where she filmed alongside Lewis Howden and Angus Miller, taking the opportunity to inform them that it marked her final day of filming up in the Isles. For her very last scene, the crew arrived wearing Tosh jumpers, prompting tears from the cast and team.
Returning Cast Members and Additions for Season 11
Alongside Jensen and O’Donnell, the new episodes feature a familiar roster of returning residents.
Additional returning cast members include Steven Robertson as DC Sandy Wilson, Lewis Howden as Sergeant Billy McCabe, Samuel Anderson as Procurator Fiscal Matt Blake, Steven Miller as Rev. Alan Calder, Anne Kidd as pathologist Cora McLean, Angus Miller as Donnie, Conor McCarry as PC Alex Grant, and Eubha Akilade as PC Lorna Burns.
The upcoming run introduces several new faces to the fictional community. The guest cast features names like Christine Bottomley, Gregor Fisher, and Gavin Mitchell.