Gillian Anderson stars in the BBC adaptation of Charles Dickens' novel 'Bleak House'. The miniseries follows the complex legal case of Jarndyce and Jarndyce, which impacts the lives of numerous characters. Anderson portrays Lady Dedlock, a mysterious and tragic figure caught up in the legal proceedings. Her performance in 'Bleak House' earned her critical acclaim and showcased her ability to bring depth and complexity to her characters.