Chances are, it'll be a good long while before we start seeing anything truly substantial from 'Game of Thrones' season 3, even this summer in San Diego at Comic-Con 2012. Earlier today we learned that a new location had been added to the epic George R.R. Martin series' international production, and now we've gotten confirmation that a young actress has been cast to play a well-known book character. Who is this mysterious lady, and what might her casting mean for the series?

SpoilerTV has gotten wind of the fact that young actress Charlotte Hope has been cast in the third season of HBO's 'Game of Thrones,' which will begin production this July in Belfast, Ireland. Hope will play a character named "Myranda," which is speculated to be that of "Myranda Royce," daughter of Lord Nestor Royce, and keeper of the Gates of the Moon for her father.

It's also been speculated that her character may be combined with that of Mya Stone, who was excised from the first season of 'Game of Thrones,' and might be more age-appropriate for Charlotte Hope. Season 3 of 'Game of Thrones' will adapt its material from George R.R. Martin's third book in the 'Song of Ice and Fire Series,' entitled 'A Storm of Swords,' which was long enough to merit dividing into the HBO program's fourth season as well. In 'A Storm of Swords,' Sansa Stark (Sophie Turner) thinks about being banished from Kings' Landing to the Gates of the Moon, having heard that Myranda keeps a lively household.

What say you, , 'Game of Thrones' fans? Is Charlotte Hope right for the part of Myranda? What are you hoping to see from 'Game of Thrones' season 3 when the it arrives next spring, or even at Comic-Con 2012? Speak up in the comments below!