| Cast list |
| Claire Foy | as | Amy Dorrit (4 episodes, 2008) |
| Matthew Macfadyen | as | Arthur Clennam (4 episodes, 2008) |
| Russell Tovey | as | John Chivery (4 episodes, 2008) |
| Judy Parfitt | as | Mrs. Clennam (4 episodes, 2008) |
| Tom Courtenay | as | Mr. Dorrit / ... (4 episodes, 2008) |
| Alun Armstrong | as | Jeremiah Flintwinch / ... (4 episodes, 2008) |
| Bill Paterson | as | Mr. Meagles (4 episodes, 2008) |
| Ron Cook | as | Chivery / ... (4 episodes, 2008) |
| Andy Serkis | as | Rigaud (4 episodes, 2008) |
| Rosie Cavaliero | as | Mrs. Plornish (3 episodes, 2008) |
| Georgia King | as | Pet Meagles (3 episodes, 2008) |
| Freema Agyeman | as | Tattycoram (3 episodes, 2008) |
| Janine Duvitski | as | Mrs. Meagles (3 episodes, 2008) |
| Zubin Varla | as | Daniel Doyce (3 episodes, 2008) |
| Jason Thorpe | as | Cavalletto (3 episodes, 2008) |
| Emma Pierson | as | Fanny Dorrit (3 episodes, 2008) |
| Roy Hudd | as | Theatre owner / ... (3 episodes, 2008) |
| Eve Myles | as | Maggy (2 episodes, 2008) |
| Jason Watkins | as | Plornish (2 episodes, 2008) |
| Eddie Marsan | as | Pancks (2 episodes, 2008) |
| Alex Wyndham | as | Henry Gowan (2 episodes, 2008) |
| Darren Boyd | as | Tite Barnacle Jr (2 episodes, 2008) |
| Sue Johnston | as | Affery Flintwinch (2 episodes, 2008) |
| Stuart McLoughlin | as | Stagehand (2 episodes, 2008) |
| Maxine Peake | as | Miss Wade (2 episodes, 2008) |
| James Fleet | as | Frederick Dorrit (2 episodes, 2008) |
| Harriet Walter | as | Mrs. Gowan (2 episodes, 2008) |
