Guest Stars Elizabeth Roberts as Liv Stern Chukwudi Iwuji as Alex 'Zander' Hale Toby Oliver as Vinnie Stern Mollie Cowen as Matilda 'Tilly' Stern Kobna Holdbrook-Smith as Vicar Glen Peters Ellora Torchia as Maggie Lavelle Afolabi Alli as Sean Bainbridge Jay Saighal as Michael McKenzie Maya Sondhi as Dawn McKenzie Anna-Maria Everett as Donna Shobu Kapoor as Annie Butler Ahmed Jamal as Miles Butler Nicholas Gleaves as Bill Graham Claire Rushbrook as Foreign Secretary Emma Graham Steve Edge as Matthew Royston Brian Croucher as Bobby Bryan Dick as Ramsey Sawyer Uncredited Marian Lorencik as Management Deborah Rock as Lawyer
