Guest Stars Una Stubbs as Mrs. Hudson Louise Brealey as Molly Hooper Zoe Telford as Sarah Paul Chequer as DI Dimmock Gemma Chan as Soo Lin Yao Al Weaver as Andy Galbraith John Macmillan as Community Officer Bertie Carvel as Seb Wilkes Daniel Percival as Eddie Van Coon Sarah Lam as Opera Singer Howard Coggins as Brian Lukis Janice Acquah as Museum Director Olivia Poulet as Amanda Jacqui Chan as Shopkeeper Gillian Elisa as Surgery Receptionist Stefan Pejic as Box Office Manager Philip Benjamin as German Tourist Jack Bence as Raz
