Hermione Jean Granger (/hɜːrˈmaɪ.əni ˈdʒiːn ˈɡreɪndʒər/) is a fictional character in J. K. Rowling's Harry Potter series. She first appears in Harry Potter and the Philosopher's Stone, as a new student on her way to Hogwarts. After Harry and Ron save her from a mountain troll in the girls toilets, she becomes best friends with them and often uses her quick wit, deft recall, and encyclopaedic knowledge to help them. Rowling has stated that Hermione resembles herself at a younger age, with her insecurity and fear of failure.[1] The character was voted the best female character in a poll conducted amongst Hollywood professionals, by The Hollywood Reporter in 2016.[2] 
Hermione Granger
Harry Potter character
First appearance Harry Potter and the Philosopher's Stone
Last appearance Harry Potter and the Deathly Hallows
Created by J. K. Rowling
Portrayed by Emma Watson
Voiced by Harper Marshall (video games; 1-4)
Rachel Sternberg (Harry Potter and the Half Blood Prince: The Video Game)
Guy Harris (Lego Harry Potter: Years 1-4)
Alice Keenan (Harry Potter and the Deathly Hallows – Part 1, Harry Potter and the Deathly Hallows – Part 2)
Jessie Braviner (Harry Potter for Kinect)
House Gryffindor
Information
Family Mr Granger (father)
Mrs Granger (mother)
Spouse(s) Ron Weasley
Children Rose Granger-Weasley (daughter)
Hugo Granger-Weasley (son)