Actor Paul Giamatti (John Adams, Sideways) is joining the cast of Downton Abbey on Masterpiece Classic. He’ll play Harold, the “maverick, playboy” brother of Cora Crawley, Countess of Grantham, according to a Masterpiece announcement today.
Gareth Neame, managing director of producer Carnival Films, said, “We can’t wait to see him work alongside Shirley MacLaine, who are both sure to upset the Granthams’ apple cart in this year’s finale.”
Downton‘s Season 4 premieres Jan. 5, 2014.
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