"Matt Smith (seasons 1–2), Tobias Menzies (seasons 3–4), and Jonathan Pryce (season 5-6) - Prince Philip, Duke of Edin…"

"Vanessa Kirby (seasons 1–2), Helena Bonham Carter (seasons 3–4), and Lesley Manville (seasons 5-6) - Princess Margare…"

"Eileen Atkins - Queen Mary (season 1)"

"Jeremy Northam - Anthony Eden (seasons 1–2)"

"Victoria Hamilton (seasons 1–2), Marion Bailey (seasons 3–4), and Marcia Warren (seasons 5-6) - Queen Elizabeth The Q…"

"Ben Miles (season 1, featured season 2) and Timothy Dalton (featured season 5) - Group Captain Peter Townsend"

"Greg Wise (seasons 1–2) and Charles Dance (season 3, featured season 4) – Louis, Earl Mountbatten of Burma"

"Jared Harris - King George VI (season 1, featured season 2)"

"John Lithgow - Winston Churchill (season 1, featured seasons 2–3)"

"Claire Foy (seasons 1–2, featured season 4, guest season 5), Olivia Colman (seasons 3–4), and Imelda Staunton (season…"