Yes, that was Game of Thrones co-creators D.B. Weiss and David Benioff on Westworld—along with one of Daenerys Targaryen's dragons.
The second episode of the long-awaited Westworld season three featured the winking cameo. "People have often joked about Westworld, Game of Thrones crossovers," co-creator Lisa Joy said in a behind-the-scenes video.
George R.R. Martin likes to joke about that. And so we thought we'd kind of indulge in that for a moment. And who better to bring to the park than Dan and Dave?
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