“David and Dan invited me to a cameo in one of the final episodes, which I was tempted to do,” Martin said.
“But I didn’t think just for the sake of a cameo I could take the time to return to Belfast.”
George R R Martin refused to make a cameo in the final season of Game of Thrones so that he could focus on another part of his work that he felt was more pressing.
Martin said that he originally had a cameo in the first Game of Thrones pilot, but that the episode was reshot and his appearance was cut.