BBC's gripping crime show Luther is set to return for a fifth season. It's been two years since the previous season. We've gathered everything we know so far about the start date, cast and trailer.

When is Luther season 5 on?

Filming began in January 2018, however, the exact date for the new season is yet to be announced. We expect it to start at the end of the year or early 2019.

The last season was two episodes long, whereas this season promises four 1 hour long episodes.

Luther season 5 trailer

The BBC released a teaser for the fifth season on 18 June, 2018 on YouTube. We see Luther donning his iconic coat and breathing heavily as he limps down a dark, mysterious corridor.

Who’s in the Luther season 5 cast?

We’re expecting new faces in the upcoming season, with Wunmi Mosaku joining the cast as Luther’s assistant D.S. Catherine Halliday. Mosaku's previous work includes BBC’s Damilola, Our Loved Boy for which she won a BAFTA.

Mosaku replaces Rose Leslie’s DS Emma Lane (whom you may recognize from Game of Thrones). Leslie is not expected to return.

Hermione Norris from Cold Feet and Spooks will be another new cast member, playing psychiatrist Dr. Vivien Lake.

Cast members from past seasons, Dermot Crowley (DSU Martin Schenk), Michael Smiley (Benny “Deadhead” Silver) and Patrick Malahide (who played the gangster George Cornelius from season 4) are returning as well.

Ruth Wilson, who plays the ever-menacing Alice Morgan will also be returning in season 5.

How to watch the last season

The first four seasons of Luther are available on Netflix. As of 19 October You can also watch it on the BBC iPlayer for free.

You can own the first four season on Blu-ray or DVD as a box set from Amazon starting at £14.99 in the UK or $42.60 in the US.