Faith, from Reading, was one of the thousands of girls, aged 8 - 12 years old, who attended the open audition in London on Saturday 18th July.
She will play Modesty, a young girl described as haunted, with an inner strength and stillness, who has an ability to see deep into people and understand them, alongside the already announced Eddie Redmayne who will play Newt Scamander.
The film is set to start shooting later this month until January 2016.