Shirley MacLaine plays Lady Mary's troublesome American grandmother Martha Levinson
She manages to get a footman's position in the household for her nephew Alfred Nugent (Matt Milne)
Former chauffeur Tom Branson (Allen Leech) returns with his new wife, the pregnant Lady Sybil Crawley. Can the staunch republican ever fit into the family?
Joanne Froggatt returns as head housemaid Anna Bates, dedicated to the release of her husband...
John Bates (Brendan Coyle). The former valet languishes in prison for the murder of his first wife Vera.
Penelope Wilton is Lady Isobel Crawley, often at odds with Countess of Grantham Cora (Elizabeth McGovern)
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