Linnea Berthelsen, best known for playing Kali Prasad/008 in the second and final season of Netflix’s smash hit “Stranger Things,” is to make her U.K. stage debut in the “Darkling” at London’s Bush Theatre. The solo play is presented by Actors Touring Company and co-produced with the Bush Theatre. Described as “an epic story of a life ravaged by ecological disaster,” it was written by Titas Halder...