Maisie Williams: Maisie Williams. Actress: The New Mutants. Margaret Constance "Maisie" Williams (born April 15, 1997) is an English actress. She made her professional acting debut as Arya Stark in the HBO fantasy television series Game of Thrones, for which she won the EWwy Award for Best Supporting Actress in a Drama, the Portal Award for Best Supporting Actress - Television and Best Young Actor, and the Saturn Award for Best Performance...
