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| Saoirse Ronan | Mary Stuart | |
| Margot Robbie | Queen Elizabeth I | |
| Guy Pearce | ||
| David Tennant | Anthony Babington | |
| Jack Lowden | Lord Darnley | |
| Joe Alwyn | Robert Dudley | |
| Maria Dragus | Mary Fleming | |
| Eileen O'Higgins | Mary Beaton | |
| Liah O'Prey | Mary Livingston | |
| Izuka Hoyle | Mary Seton | |
| Brendan Coyle | Earl of Lennox | |
| Martin Compston | Earl of Bothwell | |
| Gemma Chan | Bess of Hardwick | |
| Ismael Cruz Cordova | Rizzio | |
| Lee Starkey | Nobleman | |
| Kal Sabir | Moray Man #3 | 
| Director | 
              
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| Producer | Tim Bevan
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| Writer | Beau Willmon
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| Cinematography | John Mathieson
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| Music | Alexis Bennett
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             Mary Stuart attempts to overthrow her cousin Elizabeth I, Queen of England, only to find herself condemned to years of imprisonment before facing execution.  | 
        
            
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