Myranda

Myranda is a character debuting in the third season of Game of Thrones. She will be played by Charlotte Hope.

In the books
In the Song of Ice and Fire novels, the only character of note to be called Myranda is Myranda Royce, a young noble lady who lives in the Gates of the Moon, the great castle at the foot of the mountain that the Eyrie is located upon. She does not appear until the fourth novel, A Feast for Crows, and does not have a notable role. It is likely that the character in the TV series is a different person altogether.