Question: What English actor portrays the ward taken in by Lord Eddard Stark in the HBO adaptation of the fantasy novel series "A Song of Ice and Fire"?
Sentence (from "Theon Greyjoy"): Theon Greyjoy is a fictional character in the "A Song of Ice and Fire" series of fantasy novels by American author George R. R. Martin, and its television adaptation "Game of Thrones".
Relevant evidence: Yes