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Stella Kowalski, played by Vanessa Kirby, is a prominent character in Tennessee Williams's renowned play, "A Streetcar Named Desire." She is the sister of Blanche DuBois, the protagonist, and the wife of Stanley Kowalski, a brutish and domineering man. Stella's character represents the tension between Blanche's refined sensibilities and Stanley's raw masculinity, embodying the clash of illusion and reality that drives the play's central conflict.