In 1561, Mary Stuart, widow of the King of France, returns to Scotland, reclaims her rightful throne and menaces the future of Queen Elizabeth I as ruler of England, because she has a legitimate claim to the English throne. Betrayals, rebellions, conspiracies and their own life choices imperil both Queens. They experience the bitter cost of power, until their tragic fate is finally fulfilled.
Saoirse Ronan
as Mary Stuart
Margot Robbie
as Queen Elizabeth I
Jack Lowden
as Henry Darnley
Joe Alwyn
as Robert Dudley
David Tennant
as John Knox
Guy Pearce
as William Cecil
Gemma Chan
as Bess of Hardwick
Martin Compston
as Earl of Bothwell
Ismael Cruz Cordova
as David Rizzio
Brendan Coyle
as Earl of Lennox
Ian Hart
as Lord Maitland
James McArdle
as James, Earl of Moray
