Who is in the cast of Shetland season 4?
The latest instalment of the BBC crime drama features a core cast of recurring characters as well as guest actors who feature in only one season.
Previous seasons have seen appearances from the likes of Game of Thrones actors Ciarán Hinds and James Cosmo, Archie Panjabi from The Good Wife and Anna Chancellor.
The fourth season will see the return of Douglas Henshall in the lead role as DI Jimmy Perez.
Reflecting on how his character has changed since season one, Henshall, 52, said: “I think he’s slightly more disillusioned than he was.
“Shetland’s a lot more violent than he thought it was going to be – people seem to get murdered there a lot! And I think he’s finding being without his wife a lot harder, and the idea that he is still alone 10 years after it happened is as much of a surprise to him as everyone else.
“Bringing up a young daughter has been very difficult and reminds him of the loss he’s had and how he can’t be with anyone that’s not good for her.”
Meanwhile, Alison O’Donnell is reprising her part of Jimmy’s partner DS Alison “Tosh” McIntosh.
Joining them once more will be Steven Robertson as DC Sandy Wilson.
Also back on the cast will be Line of Duty star Mark Bonnar as Duncan Hunter, Erin Armstrong as Cassie Perez, Lewis Howden as Sgt Billy McCabe, Julie Graham as Procurator Fiscal Rhona Kelly, and Anne Kidd as forensic pathologist Cora McLean.
New cast members featuring this year include Stephen Walters as convicted murderer and potentially wronged man Thomas Malone.
Doctor Who actress Neve McIntosh is in season four as Kate Kilmuir, who is related to the victim Lizzie Kilmuir.
Others appearing in Shetland season four are Sean McGinley as Drew McColl, Amy Lennox as Sally McColl and Gerard Miller as Alan Killick.
What will happen in Shetland season 4?
Season four will start with the quashing of the conviction of killer Thomas Malone, who has been in prison for 23 years.
Shortly after he returns home to Shetland, a journalist is killed and suspicion falls on him again.
Malone’s new freedom force Perez and his team to reopen the murder case of Lizzie Kilmuir.
They will also be look at the fresh murder and try to establish any links between the two crimes and whether Malone is involved.
How many episodes are in Shetland season 4?
Like season two and three, the fourth run of Shetland will consist of six episodes.
Each episode will be an hour long and see the central story playing out over the course of the series.
Shetland first aired back in 2013 after it was commissioned for a two-part pilot but the BBC.
The show proved to be a success and got the go ahead for a full season in 2014.
Shetland season 4 starts tonight on BBC One at 9pm.