Hermione Granger  is Initially an annoying goody-two-shoes who studies too much and obeys the school rules too zealously. Hermione eventually becomes friendly with Harry after she learns to value friendship over perfectionism and obedience. She comes from a purely Muggle family, and her character illustrates the social-adjustment problems often faced by new students at Hogwarts. 

You do not need to have a british accent to audition!