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