Guest Stars Raquel Cassidy as Phyllis Baxter Samantha Bond as Lady Rosamund Painswick Douglas Reith as Richard "Dickie" Grey, Lord Merton Tom Cullen as Anthony Foyle, Lord Gillingham Andrew Scarborough as Tim Drewe Julian Ovenden as Charles Blake Daisy Lewis as Sarah Bunting Patrick Kennedy as Terence Sampson Shirley MacLaine as Martha Levinson Poppy Drayton as Madeleine Allsopp Paul Giamatti as Harold Levinson Janet Montgomery as Freda Dudley Ward James Fox as William Allsopp, Lord Aysgarth Guy Williams as King George V Pete Lee-Wilson as Porter Oliver Dimsdale as David, Prince of Wales Michael Benz as Ethan Slade Alastair Bruce as Lord Chamberlain Uncredited Scott Plumridge as Waiter Evie Wray as Lady Gemma Rourke as Lady Jane Radcliffe Anthony Milton as Club Guest Dancer Valerie Dane as Queen Mary Christopher Cowlin as Yeoman of the Guard