10 celebs we'd like to see guest star on 'Downton Abbey'
Colin Firth, Winona Ryder and yes, James Spader are all on our short list
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How would we cast Kate Winslet? In any role she wants to play. While we know she can pull off an upper crust lady (think she has any old "Titanic" costumes?), she could be a saucy downstairs maid as well. Plus, we know the Queen would approve -- she just recognized Winslet as a Commander of the Most Excellent Order of the British Empire (CBE).