Hermione Granger
Character development
Hermione Jean Granger is a Muggle-born Gryffindor, who becomes best friends with Harry Potter and Ron Weasley. J.K. Rowling states that she was born on 19 September 1979 and she was nearly twelve when she first attended Hogwarts. She is an overachiever who excels academically and is described by J.K Rowling as a "very logical, upright and good" character. J.K. Rowling adds that Hermione's parents, two Muggle dentists, are a bit bemused by their odd daughter but "very proud of her all the same." They are well aware of the wizarding world and have visited Diagon Alley with her. Hermione was originally intended to have a sister, but the planned sibling did not make an appearance in the first Harry Potter novel and, as Rowling noted, it "seemed too late" to introduce the character after all of that. Rowling confirmed in a 2004 interview that Hermione is an only child.
Hermione Granger-3