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