September 1912. Designated heir Matthew Crawley and his mother Isobel arrive and move into a house in the grounds of Downton Abbey but Matthew is uncomfortable with having servants and is not keen on an arranged marriage - something he has in common with Lady Mary. Robert's mother Violet looks down on them as they are not from her class - Matthew is a working solicitor and Isobel,a trained nurse and doctor's widow,who nonetheless impresses when she helps at the local hospital and saves the life of one of Robert's tenants. Cora upbraids the two nastiest servants,O'Brien and Thomas,for sneering at the Crawleys but impresses upon Mary the financial need for the marriage. Carson is blackmailed by Grigg, a man with whom he once had a music-hall act but Robert takes his part and sees Grigg off. Whilst Carson feels foolish for having a less than aristocratic past he is supported by Bates and the two men become friends
Elenco: Elizabeth McGovern , Maggie Smith , Hugh Bonneville , Jim Carter , Phyllis Logan , Brendan Coyle , Michelle Dockery , Laura Carmichael , Elizabeth McGovern , Hugh Bonneville , Iain Glen , Jessica Brown Findlay , Jim Carter , Joanne Froggatt , Laura Carmichael , Lesley Nicol , Lily James , Matt Milne , Michelle Dockery , Penelope Wilton , Phyllis Logan , Rob James-Collier , Robert Bathurst , Rose Leslie , Samantha Bond , Shirley MacLaine , Siobhan Finneran , Sophie McShera , Thomas Howes , Zoe Boyle , 羅北安 , 長澤まさみ .