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 Yolanda Kettle as Joy Pelling Caroline Lee-Johnson as Bella Gayle Natalie Dew as Alisha Burman Alice McMillan as Charlotte Hedge Amie Francis as Female Guard Lucy Russell as Sian Prebble Susannah Wise as Jessie Coomer Wayne Swann as Selfie Man in Supermarket