| Hugh Bonneville | Robert Crawley, Earl of Grantham |
| Laura Carmichael | Lady Edith Crawley |
| Jim Carter | Charles Carson |
| Raquel Cassidy | Baxter |
| Brendan Coyle | John Bates |
| Tom Cullen | Anthony Gillingham |
| Michelle Dockery | Lady Mary Crawley |
| Kevin Doyle | Joseph Molesley |
| Joanne Froggatt | Anna Bates |
| Lily James | Lady Rose MacClare |
| Robert James-Collier | Thomas Barrow |
| Allen Leech | Tom Branson |
| Phyllis Logan | Mrs. Hughes |
| Elizabeth McGovern | Cora Crawley, Countess of Grantham |
| Sophie McShera | Daisy Mason |
| Lesley Nicol | Mrs. Patmore |
| Julian Ovenden | Charles Blake |
| David Robb | Dr. Clarkson |
| Maggie Smith | Violet Crawley, Dowager Countess of Grantham |
| Penelope Wilton | Isobel Crawley |
| Sue Johnston | Miss Denker |
| Rade Serbedzija | Prince Kuragin |
| Emma Lowndes | Mrs. Drewe |
| Andrew Scarborough | Tim Drewe |
| Jeremy Swift | Spratt |
| Louis Hilyer | Inspector Vyner |
| Howard Ward | Sergeant Willis |
| Jamie Bradley | Hairdresser |
| Matt Barber | Atticus Aldridge |
| Catherine Steadman | Mabel Lane Fox |
| Penny Downie | Lady Sinderby |
| James Faulkner | Lord Sinderby |
| Matthew Jure | Hotel Porter |
| Oliver Barker | George Crawley |
| Zac Barker | George Crawley |
| Pamela Betsy Cooper | Aristocrat with Dog |
| Julie Eagleton | Point-to-Point Spectator |
| Fifi Hart | Sybbie Branson |
| Eva Samms | Marigold Gregson |
| Karina Samms | Marigold Gregson |