Ncuti Gatwa The Doctor Actor Millie Gibson Ruby Sunday Actor Jonathan Groff Rogue Actor Indira Varma Duchess of Pemberton Actor Paul Forman Lord Barton Actor Camilla Aiko Emily Beckett Actor Michelle Greenidge Carla Sunday Actor Maxim Ays Lord Galpin Actor Susan Twist The Portrait Actor Debra Baker Housekeeper Actor Ashley Campbell Butler Actor Nancy Brabin-Platt Miss Talbot Actor David Charles Mr Price Actor Ben Chessell Director Kate Herron Writer Briony Redman Writer Russell T. Davies Executive Producer Julie Gardner Executive Producer Jane Tranter Executive Producer Joel Collins Executive Producer Phil Collinson Executive Producer Vicki Delow Producer