Four Tribes rehearsal photos by Mark Douet, with Oliver Johnstone as Dan. Full gallery here: https://www.sheffieldtheatres.co.uk/whats-on/tribes
Here the storyline: “Billy was born deaf into a hearing family. In the arguments and jokes around the kitchen table, he has never been treated any differently to the rest of them. But when he meets Sylvia, who teaches him sign language, he starts to wonder if his family have ever really listened to him at all.” It sounds interesting!