Guest Stars Elizabeth Roberts as Liv Stern Toby Oliver as Vinnie Stern Mollie Cowen as Matilda 'Tilly' Stern Rose-Marie Vince as Cora Defoe Jesse Harold as Cora Defoe Alex Guersman as Gael Brenock O'Connor as Sasha Gerald Kyd as JJ Johnson Tyra-Anais Davis as Betty Zara Wilson-King as Tali Tiahjah Davis as Marni Jenny Galloway as Jeanette Dermot O'Leary as TV Presenter Antonia Bourdillon as Colleague Karlina Grace-Paseda as Judge Michael Elkin as Delivery Man