has she been a part of theatre?
Yes, In "Harry Potter and the Cursed Child"
Hermione Granger
In "Harry Potter and the Cursed Child", Hermione is played by the Swaziland-born actress Noma Dumezweni, also known for her work in "Linda", "A Raisin in the Sun" and "A Human Being Died That Night". 
harry potter and the chamber of secrets pages UNANSWERABLE what is harry potter and the chamber of secrets? It is a fantasy novel who is the author of this novel? J. K. Rowling who published it? It was published in the United Kingdom on by Bloomsbury and later in the United States by Scholastic Inc. who are the main characters? Harry Potter, Ron Weasley, Hermione Granger who plays the role of the last one? Emma Watson what is her personality like? Her most prominent features include her prodigious intellect and cleverness. She is levelheaded, book-smart, and always very logical.
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Hermione Granger [SEP] Theatre portrayal
In "Harry Potter and the Cursed Child", Hermione is played by the Swaziland-born actress Noma Dumezweni, also known for her work in "Linda", "A Raisin in the Sun" and "A Human Being Died That Night". Dumezweni described the role as a "privilege and a responsibility" and said that "we all aspire to be Hermione." The choice of a black actress to play the part led to criticism on social media, which J.K. Rowling described as being by "a bunch of racists", adding that the books never explicitly mentioned her race or skin colour (although she did write in Harry Potter and the Prisoner of Azkaban "Hermione's white face was sticking out from behind a tree.") and that she has been portrayed as black in fan art.