Best known as Asher D in the group So Solid Crew, Walters stars as Jack Holt in the eight-part series, which begins at 9pm on Monday 7th February.

“The genre came totally out of the blue for me – I never thought I’d be doing sci-fi at this stage in my career”, he told BBC Press Office. “I was overwhelmed and really glad to be offered the part. I got the call and was offered the part six days before I went to South Africa, so I didn’t have much time to think about it or to prepare.”

He continues: “I have family and children here so it was a really hard decision to make solely based on that, but when it came down to the script, the project, the production company and working with the BBC again it was a no-brainer for me.”