Gillian Anderson's portrayal of Lady Dedlock in the miniseries adaptation of Charles Dickens' Bleak House is a standout performance. The series follows the complex legal case of Jarndyce and Jarndyce, and Lady Dedlock's mysterious past becomes intertwined with the proceedings. Anderson's nuanced portrayal of the enigmatic Lady Dedlock earned her critical acclaim and showcased her talent for bringing complex literary characters to life.