Maggie and Stella are two characters from Tennessee Williams' play 'A Streetcar Named Desire'. Maggie is the younger sister of the protagonist, Blanche DuBois, and Stella is Blanche's sister-in-law, who is married to Stanley Kowalski. Maggie is a strong-willed woman who is determined to make her own way in life, while Stella is a more gentle and nurturing figure. Both characters are integral to the story and provide insight into the complex relationships between the characters.