Guest Stars Emma Cunniffe as Sydney Jennifer Hennessy as Bryony Beckett Olivia Vinall as Julia Blythe Anna Francolini as H.J. Keane Danny Ashok as Luke Strand Natalie Dew as Alisha Burman Caroline Lee-Johnson as Bella Gayle Kate Lamb as Lindsay Storm Teresa Banham as Barbara Cooke Vincenzo Nicoli as George Mark Weinman as Gerald Elsom Ingrid Craigie as Eileen Pepper