Dougray Scott and Romola Garai join Suranne Jones and Rose Leslie in Vigil series 2

Dougray Scott has joined the cast of 'Vigil'.

The 57-year-old actor and Romola Garai are to star alongside Suranne Jones, Rose Leslie, and Gary Lewis in the second series of the BBC drama, which will see Amy Silva (Suranne) and Kirsten Longacre (Rose) take to the skies for a new investigation as the pair look into the world of the British air force.

Dougray said: "I'm delighted to be joining the cast of 'Vigil' series two - the first was so highly regarded and widely watched, and I’m really looking forward to collaborating with Tom Edge and Andy De Emmony.

"Suranne Jones and Rose Leslie are great talents and I’m excited to be working with them."

Romola added: "It’s a huge privilege to be welcomed in as a part of 'Vigil' series two and to be playing such a layered, complex character.

"I can only hope to do justice to the shows continued fascinating, challenging and thrilling storytelling."

Suranne has teased fans that the second series, which will see Silva and Longacre try to uncover the cause of multiple unexplained fatalities at a Scottish military facility, will be "quite a ride".

She said: "I’m thrilled to be joining the Vigil team again and continuing our story.

"We have brilliant new scripts and some amazing additions to the cast. Buckle up. It’s quite a ride."

Rose added: "I’m delighted to team up with Suranne again and continue Amy and Kirsten’s adventures through a second series of 'Vigil'.

"Tom Edge has created another gripping case for us to grapple with in a whole new setting."

The six-part series will film in Scotland and Morocco from the spring.