Harry Potter: Hermione Has Been Thought of as Black Before

December 21, 2015 10:45 PM EST

When casting was announced Sunday for the upcoming West End play, Harry Potter and the Cursed Child, some fans were surprised that the character of Hermione Granger would be played by a black actress: the Swaziland-born, Olivier Award–winning Noma Dumezweni.

In typical J.K. Rowling fashion, the author of the beloved series quickly took to Twitter to rebuke fans who saw this as a departure from the books: “Canon: brown eyes, frizzy hair and very clever. White skin was never specified. Rowling loves black Hermione,” she wrote.

But the casting decision and Rowling’s follow-up statement were not a surprise to some fans. For years, a community of readers have wondered whether Hermione Granger was indeed written as a black or mixed-race character all along.

Bloggers have speculated about Hermione’s race on sites from Black Girl Dangerous to Hello Giggles, often articulating the way they as women of color identified with the character — an outsider in Hogwarts — as children. In past months, other fans have debated the question on Reddit and Quora, pointing out not only details about Hermione’s hair, but also that she’s never specifically described as white. In February, a Buzzfeed post celebrated fan art depicting Hermione as black; the author related the racial slurs flung at her as a middle schooler reminded her of the characters who called Hermione a “mudblood.” And in Harry Potter and the Prisoner of Azkaban, Hermione’s skin is described as “very brown” after a vacation — hardly proof, but it seems to be the only time her skin is ever mentioned.

Some commentators, such as Stephen Bush at the New Statesman, note that they’ve thought of Hermione as black since first reading the books:

[I] always imagined her as black, partly because, when she wows her fellow pupils at the Yule Ball in Goblet of Fire, she straightens her hair, which was, almost without exception, how in my part of East London, everyone’s older sister prepared for a night out.

So I was horrified a year later when [Emma] Watson — exceptionally white, no frizzy hair, and without Granger’s prominent teeth — was cast in the role. How could Hermione be white?

Of course, the illustrations in the Potter books appear to present a white girl. The illustrator, Mary GrandPre, told TIME in a 2008 interview that she didn’t deviate from the book’s descriptions: “I have this obligation and sense of responsibility — and privilege — to stay true to the writing.” The casting of Watson in the films made the assertion that Hermione was white even more official. That said, most readers also assumed Dumbledore was heterosexual until J.K. Rowling announced he was gay in 2007.

Actually, Harry Potter Fans Have Wondered if Hermione Was Black Before

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