Question: Who was the author of the book series that the TV series is based on that Maisie Williams made her debut on?
Sentence (from "Maisie Williams"): She made her professional acting debut as Arya Stark in the HBO fantasy television series "Game of Thrones" in 2011, 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 by a Younger Actor.
Relevant evidence: Yes