| Name | Character | Episodes |
|---|---|---|
| Olivia Cooke | Becky Sharp | 7 |
| Charlie Rowe | George Osborne | 7 |
| Tom Bateman | Rawdon Crawley | 7 |
| Claire Skinner | Louise Sedley | 7 |
| Michael Palin | William Makepeace Thackeray | 7 |
| Ellie Kendrick | Jane Osborne | 7 |
| Martin Clunes | Sir Pitt Crawley | 7 |
| Sian Clifford | Martha Crawley | 7 |
| Robert Pugh | John Osborne | 7 |
| David Fynn | Jos Sedley | 7 |
| Claudia Jessie | Amelia Sedley | 7 |
| Frances de la Tour | Lady Matilda Crawley | 7 |
| Simon Russell Beale | John Sedley | 7 |
| Johnny Flynn | William Dobbin | 7 |