It’s a great, vaudevillian comic turn but Fynn shares the limelight with Hannah Nordberg, the young American actress making a dazzling West End debut as Lydia, the depressed teen whose father has bought the haunted house. Shrewdly, Brown and King shunt the charming-but-dull Maitlands (David Hunter and Chelsea Halfpenny) to the sidelines, and foreground Lydia’s grief for her dead mom. This facilitates a showstopper, actually called Dead Mom, and gives Lydia more agency in Beetlejuice’s chaotic and sometimes pervy shenanigans.