Bianca de Souza Mendes Comparato (born November 19, 1985) is a Brazilian actress. She is known for starring in critically acclaimed productions such as Como Esquecer in 2010, as well as A Menina sem Qualidades and Somos tão Jovens, both in 2013, the latter for which she won the Grande Prêmio do Cinema Brasileiro as Best Supporting Actress for her role of Carmem Teresa. In 2016, she starred in the Netflix-exclusive series 3%, gaining international attention and acclaim for her portrayal of the series' protagonist, Michele.
Bianca was born in Rio de Janeiro, the daughter of the writer Doc Comparato and older sister of actress and presenter Lorena Comparato. She is of Portuguese and Italian descent. At age 16, Comparato attended a three-month course at the Royal Academy of Dramatic Arts in London, as a prize given by the British School of Rio de Janeiro, for standing out in the theatre course. She returned to Brazil determined to quit school to devote herself to her artistic career, but was dissuaded by her parents. Along with the regular school, Bianca attended courses on body language and drama. In 2010 Bianca graduated from the film school at the Pontifical Catholic University of Rio de Janeiro.