The play stars Tom Chambers, Susie Blake, Laura White, Rebecca Charles, Jonny Green and Owen Oakeshott, whose characters form an extended family.
Set in rural England on New Year's Eve, the family are in a car crash which leads them to isolated holiday cottage where they experience ghosts.
On his casting, Chambers said: "I'm really thrilled and excited to be a part of this brand new piece of theatre, keeping audiences on the edge of their seats.
It was confirmed that Susie Blake, Laura White, Rebecca Charles, Jonny Green and Owen Oakeshott would be playing Danny's extended family members.
"[4] Murder in the Dark is set on New Year's Eve when a car crash leaves troubled singer Danny Sierra and his extended family stranded at an isolated holiday cottage in rural England.