Showrunner David Benioff said, “You will see him” but wouldn't reveal which episode he would appear in or what role the writer would be playing. Martin shot a guest spot in the pilot episode of "Thrones" but as is so often the case in Hollywood, the future star ended up chopped from the final cut. Benioff said, "90% of the pilot was re-shot and George’s cameo ended up on the cutting room floor." Thems the breaks in Tinseltown.
"Game of Thrones" returns to HBO on March 31.