Olivia Colman Edith Swan Jessie Buckley Rose Gooding Anjana Vasan Gladys Moss Timothy Spall Edward Swan Gemma Jones Victoria Swan Malachi Kirby Bill Alisha Weir Nancy Gooding Joanna Scanlan Ann Eileen Atkins Mabel Lolly Adefope Kate Hugh Skinner Constable Papperwick Paul Chahidi Constable Spedding Jonny Sweet Alwyn A. Anderson Tim Key Father Ambrose Jason Watkins Mr. Treading Richard Goulding Mr. Scales Cyril Nri Judge Maccleston Tim McMullan Justice of the Peace Ian Drysdale Prison Warden Jenny Galloway Lizzie Bayliss Laura June Hudson Outraged Woman Neil Fox-Roberts Post Office Teller Grant Crookes Police Sergeant (uncredited) Adam Treasure Pharmacist (uncredited)