Guest Stars David Warner as Donald Lockston Tosin Cole as Djimon Adomakoh Zoe Tapper as Elizabeth Capstone Ian Puleston-Davies as Frank Guitteau Peter de Jersey as Andrew Dimmock Mali Harries as Sarah Alderwood Lynda Rooke as Joyce Guitteau Oliver Lansley as David Capstone Emerald O'Hanrahan as Kate McMurdoch Tristam Summers as Adam Capstone Uncredited Claude Earl Jones as Lawyer Charlotte Mellish as Oxford Student / Cafe Waitress
