John Lithgow as Winston Churchill, the Queen's first Prime Minister.Jared Harris as King George VI, Elizabeth's father, known to his family as Bertie.
Greg Wise as Louis Mountbatten, 1st Earl Mountbatten of Burma, Philip's ambitious uncle and great-grandson of Queen Victoria. Ben Miles as Group Captain Peter Townsend, George VI's equerry, who hopes to marry Princess Margaret. Victoria Hamilton as Queen Elizabeth, King George VI's wife and Elizabeth II's mother, known as Queen Elizabeth The Queen Mother during her daughter's reign. Jeremy Northam as Anthony Eden, Churchill's Deputy Prime Minister and Foreign Secretary, who succeeds him as Prime Minister. Eileen Atkins as Queen Mary, Elizabeth's grandmother and great-granddaughter of King George III. Vanessa Kirby as Princess Margaret, Elizabeth's younger sister. Matt Smith as Philip Mountbatten, Duke of Edinburgh, Elizabeth's husband. Claire Foy as Princess Elizabeth and later Queen Elizabeth II. Main article: List of The Crown characters Main