Credit: HBO

Game of Thrones has featured a surprising number of cameos over the years, and with little fanfare made about these famous faces sneaking onto the screen, we wouldn’t be too surprised if you missed every single one of them. That’s why we’ve gathered up up this handy list!

Gary Lightbody. The lead singer of Snow Patrol appeared in Season 3, Episode 3: "Walk of Punishment," playing one of Roose Bolton’s soldiers.

Will Champion. Coldplay’s drummer played the drums with the wedding band during Game of Thrones’ notorious Red Wedding scene in Season 3, Episode 9: "The Rains of Castamere."

Sigur Ros. Continuing the show’s tradition of having rock stars appear in guest roles, it’s been announced that the Icelandic band will have a role in Season 4. No word yet on just who the trio will be portraying, but showrunners David Benioff and D.B. Weiss are big fans of their music, so we wouldn’t be too surprised if they perform at Joffrey and Margaery's royal wedding.

President George W. Bush. Well, at least a wax duplicate of his head. The head appeared on a spike alongside Ned Stark’s head in the Season 1 finale, "Fire and Blood." Benioff and Weiss claimed they used the head due to budgetary restraints — "we just had to use whatever heads we had lying around" — and not to make any political statement. HBO has since apologized for the incident, and the head was digitally altered out of the scene for future DVDs.

George R. R. Martin? The creator of A Song of Ice and Fire, the series of novels upon which GoT is based, has stated that an appearance in Season 4 is a possibility. While nothing has been finalized, we sure would love to see GRRM grace our screens next year!

Did you know about these cameos, or are they news to you? Sound off in the comments below!