The play reveals to the very depths the character of Blanche du Bois, a woman whose life has been undermined by her romantic illusions, which lead her to reject—so far as possible—the realities of life with which she is faced and which she consistently ignores. The pressure brought to bear upon her by her sister, with whom she goes to live in New Orleans, intensified by the earthy and extremely "normal" young husband of the latter, leads to a revelation of her tragic self-delusion and, in the end, to madness.
Blanche Dubois (Late 20s to Late 30s) Not quite a heroine, Blanche is the complicated protagonist of the play. Blanche tries to continue being the Southern belle of her youth, but she is too old and has seen too much, and soon her grip on reality begins to slip. She does not understand the passion in her sister's marriage and is coldly calculating in her relationship with Mitch.
Stella Kowalski (Mid 20s to Mid 30s) Blanche's younger sister, Stella has made a new life for herself in New Orleans and is madly in love with her husband Stanley. Stella is forthright and unapologetic about the nature of her relationship with her husband, and although she loves her sister, she refuses to let anything come between her and Stanley.
Stanley Kowalski (playing age late 20s to Early 40s) Stella's husband, is a man of solid, blue-collar stock - direct, passionate, mean and moody, uneducated, violent, a brute who oozes sexual magnetism. He has no patience for Blanche and the illusions she cherishes. Moreover, he is a controlling and domineering man, demanding subservience from his wife in the belief that his authority is threatened by Blanche's arrival. In the end, though, Stanley proves he can be as cold and calculating as she is.
Harold "Mitch" Mitchell (Mid/Late 30s to Mid 40s) One of Stanley's friends. Mitch is as tough and "unrefined" as Stanley. Shy and clumsy, but gentle and kind, devoted to his ailing mother. He is attracted to Blanche from the start, but when the truth about Blanche's history comes to light, he feels swindled by her.
Eunice Hubbell (Late 30s – Late 50s) is the owner of the apartment building, and Steve's wife. She is generally helpful, and Stella’s only real friend. Indeed, she has a personal understanding of the Kowalski’s' relationship because it mirrors her own.
A Young Collector (playing age 17 to early 20s) The Young Collector comes to collect money for the paper. Blanche throws herself at him. Appears at the end of Scene 5.
Steve Hubbell (similar age to Eunice) Steve Hubbell is Eunice's husband, and owner of the apartment building. As one of the poker players, Steve has the final line of the play. It comes as Blanche is carted off to the asylum and Steve coldly deals another hand.
Pablo Gonzales (any age) is a poker buddy of Stanley’s
Negro woman (any age)
Doctor (male, Any age), appears in the final scene
Mexican Flower Seller (female, any age)
Nurse (female, Any age) appears in the final scene