It's been confirmed that flashbacks will be a feature of the upcoming fifth season of "Game of Thrones," and now, we know just who will be playing a younger version of one of the main characters.

Fan site Watchers on the Wall reports that actress Nell Williams will play a young Cersei Lannister, which was confirmed on the star's agency page. According to Watchers, the flashback in which Williams will play Cersei may be part of a dream, and will most likely feature an older woman character called Maggy the Frog.

There's been no official word yet from HBO about the casting, so stay tuned to see if the network has anything to add about Williams's addition to the cast.

The fifth season of "Game of Thrones" will premiere on HBO sometime this spring.

[via: Watchers on the Wall, h/t Vulture]

Photo credit: Associated Press