Caroline Thibodeaux is a fictional character from the play "A Streetcar Named Desire," written by Tennessee Williams. She is often referred to as "Blanche DuBois," which is her actual name in the story. Blanche is a complex character who struggles with her past and seeks refuge in her sister's home in New Orleans. Throughout the play, Blanche's interactions with other characters, particularly her brother-in-law Stanley Kowalski, reveal her vulnerabilities and the impact of her tragic history. The themes of desire, mental health, and the clash between reality and illusion are central to her character's journey.