Turns out, HBO wasn't too amused by the fact that Games of Thrones showrunners David Benioff and D.B. Weiss used a prosthetic head resembling former president George W. Bush for a scene from episode ten of the first season, when King Joffrey is forcing Sansa Stark to look at the decapitated heads of her father and former handmaiden upon spikes on a castle wall. According to Benioff and Weiss in the DVD commentary, the head just to the left of theirs was Bush's, and they used it because they "had to use whatever head we had around."
In a statement released to io9, HBO said:
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Additionally, Benioff and Weiss released their own statement of apology:
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