Olivia Cooke Becky Sharp Actor Johnny Flynn William Dobbin Actor Claudia Jessie Amelia Sedley Actor Simon Russell Beale Mr Sedley Actor Martin Clunes Sir Pitt Crawley Actor Frances de la Tour Miss Matilda Crawley Actor David Fynn Jos Sedley Actor Anthony Head Lord Steyne Actor Suranne Jones Miss Pinkerton Actor Charlie Rowe George Osborne Actor Claire Skinner Mrs Sedley Actor Tom Bateman Rawdon Crawley Actor Michael Palin William Makepeace Thackery Actor Robert Pugh Mr John Osborne Actor Mathew Baynton Bute Crawley Actor Sian Clifford Martha Crawley Actor Niamh Durkin Rose Crawley Actor Orli Goldstein Violet Crawley Actor Madeline Hyland Lady Crawley Actor Julia Stannard Producer James Strong Director, Executive Producer Gwyneth Hughes Writer, Executive Producer Tom Mullens Executive Producer Damien Timmer Executive Producer