Martin Compston has joined the cast of 'Our House'.

Martin Compston

Martin Compston

The 37-year-old actor is set to star alongside Tuppence Middleton in the four-part drama series, which is being adapted for ITV by Simon Ashdown from the best-selling novel of the same name.

Martin - who is, perhaps, best known for playing Steve Arnott in 'Line of Duty' - said: "I’m absolutely delighted to be part of the cast of ITV’s 'Our House' in the role of Bram.

"The scripts are genuinely thrilling, packed with twists and turns that kept me guessing until the end. I’m excited to bring them to the screen."

Tuppence, 34, will play Martin's estranged wife in the new show and she's similarly excited about the project.

The actress - who has previously starred in 'Black Mirror' and 'New Tricks' - explained: "What struck me about 'Our House' is its immense relatability; it’s a story where you catch a glimpse of yourself in the characters, and you get the chilling realisation that what happens to Fi could happen to anyone.

"What a fantastic opportunity to work alongside ITV and the team at Red Planet Pictures to adapt this artfully plotted novel."

Rupert Penry-Jones is also set to star in the upcoming drama series.

The 50-year-old actor is "delighted" to have joined the cast, promising fans that the show will "subvert all expectations" over the course of four episodes.

He shared: "I’m delighted to be stepping into the shoes of the elusive character of Toby in this nail-biting thriller; highlighting how a few innocent wrong turns can spiral into an eventuality no one anticipated.

"It’s all the more rewarding to be working alongside the brilliantly talented Tuppence Middleton and Martin Compston.

"This is a TV thriller that will subvert all expectations."