The character will appear in three episodes this season.
"We need a characterful-looking guy - long nose and skeletal features and perhaps a bit sly - to play a son who is unable to live up to the demands of his savage father."
Based on this description, could it be one of the Frey sons? Actor David Bradley, who plays Walder Frey, previously told Vulture magazine that his character would most likely return for season 6.
