Stanley Kowalski is a fictional character from the play A Streetcar Named Desire by Tennessee Williams. He is portrayed as a rough, working-class man living in New Orleans, known for his primal instincts and assertive personality. Stanley is the husband of Stella Kowalski and plays a central role in the conflict with his sister-in-law, Blanche DuBois. Stanley is characterized by his strong physical presence and a sense of entitlement, often clashing with the more delicate and refined Blanche. His actions and attitudes reflect themes of masculinity, power, and the struggle between reality and illusion in the play.