Before attending Bath Dance College to pursue a career in performing arts, Williams went to Clutton Primary School. Raised in Somerset, she is the youngest of four of her other siblings Beth, James, and Ted. Williams early career has already been filled with multiple awards, from supporting actress to the best young actor.
Her most notable performance to date is on HBO's popular TV series Game of Thrones (2011) as Arya Stark. This was deemed as Williams official professional acting debut, winning her multiple awards.