Hermione
J.K. Rowling was tired of explaining how to pronounce “Hermione,” so she let the character do that for her. J.K Rowling said she was always asked how to pronounce Hermione’s name, so in Goblet of Fire, she made the character teach Viktor Krum how to say it.
Rupert Grint Is Really Afraid of Spiders
Grint suffers from extreme arachnophobia, which means he is terrified of spiders. So when he and Harry were expected to visit Aragog, he didn’t have to pretend to be terrified – just thinking about spiders was enough to make him put on a brave face. Ron/Rupert is in such a bad situation.