Open this photo in gallery: Davinder Malhi (left) as Malhi and Linda Kash as Marjorie in Casey and Diana at Stratford Festival 2023.Cylla von Tiedemann/Handout Casey and Diana, Nick Green’s hit history play set in Toronto’s Casey House AIDS hospice in the lead-up to a visit by Princess Diana in 1991, is back on stage this week at Soulpepper in the city where it is set. We won’t re-review director Andrew Kushnir’s moving production as it has transferred from its sold-out run last summer at the Stratford Festival mostly intact. (Canadians across the country can stream a recording on stratfest@home,...