Guest Stars Hayley Atwell as Freya Deverell Samuel West as Peter Scabius (Older) Ed Stoppard as Ben Leeping (Older) Conor Nealon as Logan Mountstuart (Child) Tom Hollander as Prince of Wales Gillian Anderson as Wallis Simpson Julian Ovenden as Ernest Hemingway Emerald Fennell as Lottie Flaminia Cinque as Mrs. Mountstuart Holliday Grainger as Tess Scabius
