The Honorable Gwendolen Fairfax Lady Bracknell's daughter, exhibiting some of the sophistication and confidence of a London socialite, believes style to be important, not sincerity. She is submissive to her mother in public but rebels in private. While demonstrating the absurdity of such ideals as only marrying a man named Ernest, she also agrees to marry Jack despite her mother's disapproval of his origins.
Algernon’s cousin and Lady Bracknell’s daughter. Gwendolen is in love with Jack, whom she knows as Ernest. A model and arbiter of high fashion and society, Gwendolen speaks with unassailable authority on matters of taste and morality. She is sophisticated, intellectual, cosmopolitan, and utterly pretentious. Gwendolen is fixated on the name Ernest and says she will not marry a man without that name.