Brienne of Tarth is a fictional character in George R. R. Martin's A Song of Ice and Fire series of fantasy novels. She is a prominent point of view character in the fourth novel, A Feast for Crows, and a main character in the television adaptation.In the series, Brienne is portrayed by British actress Gwendoline Christie, and is introduced in the show's second season. After appearing as a regular for two seasons, Christie was promoted to the main cast from season four onwards.